Exhibit 2a All Rare Plants List.xlsx
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Department of Agriculture Forest Service
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This document is an Excel file titled "Exhibit 2a All Rare Plants List" that contains a list of rare plant species found in Idaho. It provides detailed information on each species, including the scientific name, common name, INPS status, IDNHP rank, range, number of occurrences, county, habitat, threats, and recommendations.
The key details from this document are:
- The list contains 225 rare plant species found in Idaho, including information on their conservation status, distribution, habitat, and threats.
- Many of the species are considered rare (INPS status of "RARE") or have a state rank of S1 or S2, indicating they are critically imperiled or imperiled in Idaho.
- Threats to the rare plants include development, grazing, invasive species, climate change, recreation, and other human activities.
- The document provides recommendations for managing and conserving these rare plant species, including adding them to special status lists, monitoring populations, and addressing specific threats.
This information may be relevant to the Invasive Species/Rare Plants Vegetation Management Services IDIQ contract opportunity, which seeks services to manage invasive species and rare plants on National Forest lands.
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Sheet1
| Idaho Native Plant Society Rare Plant List - 2022 | May 5, 2022 Version | ||||||||||||||||||
| Scientific Name | Synonym | Common Name | INPS Status | IDNHP Rank (Bold S= currently ranked) | Rank Process/ Author | Date Ranked | Range Extent | Key(s) | Number of Occurrences | County(s) | Habitat Specificity | Threats | Comments | Recommendation | 2009 INPS rank | IDNHP Database (Y/N) | RPWG Region | Jurisdiction | |
| Abronia elliptica | Dwarf Sand-verbena | ||||||||||||||||||
| RARE | G5 S1 | 2014 RPC approved/ L. Kinter | 2/7/2013 (V 3.1) | Peripheral | FNA, IMF | 1 | Bear Lake | Narrow (sandy, gravelly, shaley) | Medium to Very High | Feb2013: Recreation threats could be imminent, in state park. Most Idaho collections not A. elliptica. NatureServe says not in Idaho. Feb2014: Spellenberg confirmed 1 EO. Recreation threats; sandy soil on lakeshore. | Feb2013: Recommend rank updated to S1 and species added to list. Feb 2014: Alma rec. adding to USFS Sensitive List. | not on list | N | S | |||||
| Abronia mellifera | white sand-verbena | RARE | G4 S1S2 | 2016 RPC approved/ Barbara Ertter | 11/10/2015 (V 3.1) | Regional Endemic/ core | FNA, IMF | 19 recent, and about 63 historic | Ada, Bingham, Blaine, Bonneville, Butte, Canyon, Elmore, Fremont, Gem, Jefferson, Madison, Minidoka, Owyhee, Power, Twin Falls, Washington | Narrow (sandy, gravelly, shaley soil) | Very High to High | Nov2015 SI RPWG: Boise foothill may be a distinct taxon, and is threatened by development. But even ranking the species sensu lato it is at risk. Mar2016: var. pahoveorum published after the RPC will be ranked/presented at the next conference. | 2016 RPC: Conservation concern, especially Boise foothill occurrences. High priority for USFWS to focus on. | not on list | N | S | |||
| Agastache cusickii | Cusick's Giant-hyssop | RARE | G3G4 S2 | 2014 RPC approved/ G. Wigglesworth | 2/7/2013 (V 3.1) | Sparse | PNW, IMF | 24 herbarium records 16 distinct Eos | Benewah?, Blaine, Butte, Cassia, Clark, Custer, Lemhi | Narrow (high elevation, talus slopes) | Low | Feb2013: Likely that there are more populations out there. Habitat is under-explored. Feb 2014: Benewah Co. record needs confirmation (habitat doesn't fit typical description). Threat impacts rated as low to none (high elevation sites; not as impacted). Rose L. will check status in USFS Region 1. Kay B. asked if climate change threat was considered (yes, it was). | Feb2013: Need to verify Benewah record. Recommend USFS consider adding it to list. Recommend rank updated to S2 from SNR. Feb 2014: Add to USFS Sensitive List. Josh rec. S2 rather than S3 (don't include "hunches"). | GP3 | Y | S | |||
| Agoseris lackschewitzii | Agoseris aurantiaca var. carnea | Pink Agoseris | RARE | G4 S1S2 | 2016 RPC approved/ Jennifer Miller | 1/7/2016 (V3.186) | Regional Endemic/ core | FNA? | 17 | Clark, Fremont, Lemhi | Very narrow to narrow (wet areas in montane meadows) | Very High to High | Jan2016 SI RPWG: Updated rank based on new observations. | Jan 2016 SI RPWG: Recommend maintain RARE. | S-sensitive | Y | S | BLM Salmon FO; Salmon & Targhee NFs | |
| Aliciella triodon | Gilia triodon; G. leptomeria (in part) | Coyote gilia | RARE | G5 S1 | 2020 RPC approved/ B. Corbin | 2/27/2019 (v 3.186) | Peripheral | Jepson 2 | 1-2 | Owyhee | Moderate (ashy barrens, basalt scree) | Very High-High: weeds, grazing, roads, OHVs | Feb 2020 RPC: Difficult to identify. Consider mormon cricket treatments and their impacts to native insect species (pollinators) as potential threats to species in low elevation deserts. | Feb2019 SI RPWG: Add to BLM Special Status list. Annotate Bjork specimen. | not on list | S | |||
| Allenrolfea occidentalis | Iodinebush | ||||||||||||||||||
| RARE | G4 S1 | 2016 RPC approved/ Lynn Kinter | 11/10/2015 (V 3.1) | Peripheral | FNA, IMF | 2 extant, 3 historic | Bingham, Cassia, Oneida (historic) | Very narrow (moist alkaline soils) | Very High | Nov2015 SI RPWG: Updated rank based on recent observation. | Nov 2015 SI RPWG: Recommend maintain RARE. | SP1 | Y | S | BLM Potatello FO | ||||
| Allium aaseae | Aase Onion | ||||||||||||||||||
| RARE | G2+ S2 | 2011 RPC Discussed/ S. Filkins; 2018 RPC approved/Carol Prentice | 10/19/2011 (V2.0); updated 11/18/2016 (V3.186) | Local Endemic/ Core | FPNW, IMF, FNA Vol. 26 | up to 80 | Ada, Boise, Gem, Payette, Washington | Narrow (low elevation sandy slopes) | Very High: Development, livestock, sand mining, utility lines, recreation, fire suppression & habitat conversion, weeds | Oct2011: May be ranked G2 S2, but need to verify source data. Nov 2016 SI RPWG: Very high, imminent threats. | Feb 2014: Need to verify info and re-rank. Nov 2016 SI RPWG: Re-ranked with updated information and recommend S2, RARE. Approved at 2018 RPC; no new info. | GP3 | Y | S | BLM Four Rivers FO | ||||
| Allium anceps | Kellogg's Onion | RARE | G4 S2S3 | 2020 RPC approved/ J. Miller & L. Cabiles | 11/27/2018 (v3.186) | Peripheral | IMF, FNA, Flora of Oregon, Jepson | 17-18 | Cassia, Jerome, Lincoln, Owyhee, Twin Falls, Washington | Moderate (Heavy, usually barren, clay soils, rocky openings in sagebrush steppe) | Medium: grazing, roads, fuel breaks, development, weeds, climate change | SP2 | Y | S | BLM Jarbidge & Burley FOs | ||||
| Allium madidum | Swamp Onion | ||||||||||||||||||
| G3 S3 | GP3 | Y | S | Payette NF | |||||||||||||||
| Allium tolmiei var. persimile | Tolmie's Onion | G4G5T3+ S3 | GP3 | Y | S(N) | BLM Cottonwood FO; Boise & Payette NFs | |||||||||||||
| Allium validum | Tall Swamp Onion | G4 S3 | S-sensitive | Y | S(N) | ||||||||||||||
| Allotropa virgata | Sugarstick | G4 S3 | S-sensitive | Y | N,S | BLM Cottonwood FO; Payette NF | |||||||||||||
| Ammannia robusta | grand redstem | RARE | G5 S1S2 | 2022 RPC approved/ B. Corbin | 12/4/2020 (v 3.2) | Sparse | FPNW2, IMF | 6-7 | Ada?, Canyon, Gem, Nez Perce, Owyhee, Payette | Narrow (river/lake mudflats below 3,000 ft) | High: Agriculture, RR & Hwy maintenance, weeds, water management | 2022 RPC: Add to list. Dec 2020 SIRPWG: Several records very old. Ephemeral wetland habitat. | Recommend USFWS Refuge manage as special status | Not listed | Y | S | Deer Flat NWR; BOR?; BIA; IDFG; private | ||
| Andreaea heinemannii | moss | RARE | G3G5 S1 | 2014 RPC approved/ A. Hanson | 2/7/2013 (V 3.1) | Disjunct | FNA | 1 | Idaho | Narrow (granitic subalpine to alpine) | Unknown | Feb2013: Restricted range and few populations. Probably under-collected b/c of elevation. Feb 2014: Specimen is at UBC. | Feb2013: Add to USFS list. Revisit site to determine the extent of population and characterize habitat. Recommending keeping rank at S1. | GP3 | Y | S | |||
| Anemone cylindrica | Long-fruit Anemone | RARE | G5 S1 | 2020 RPC approved/ J. Strickland | 12/6/2019 (v3.193) | Peripheral | FNA | 4 | Bonneville | Broad (prairies, dry, open woods, pastures, roadsides) | Very High: agriculture, hydrologic alteration, weeds, housing development, climate change, recreation | SIRPWG Dec 2019: Most recent record is 1993 | S review | N | S | BLM Upper Snake FO | |||
| Angelica kingii | Great Basin Angelica | ||||||||||||||||||
| RARE | G4 S1 | 2018 RPC approved/ Jennifer Miller | 1/17/2017 & 2/21/2018 (v 3.186) | Peripheral | IMF | 2-3 | Owyhee, Jerome/Twin Falls? | Narrow (springs, streams) | Medium: grazing, trampling, development | SI RPWG Mar 2017: Very few occurrences, unknown conditions. Shoshone Falls record from 1897, but specimen likely lost in a fire. | SI RPWG Mar 2017: Maintain INPS RARE, and recommend BLM maintain Special Status. | SP1 | Y | S | BLM Owyhee FO | ||||
| Antennaria arcuata | Meadow Pussytoes | RARE | G2 S1 | 2018 RPC approved/ Jennifer Miller | 10/13/2017 (v 3.186) | Regional Endemic/ Edge | FPNA, FNA Vol. 19, IMF | 3 | Blaine, Custer | Narrow (grass/sedge meadows in sagebrush/ grass) | High-Medium: Livestock, weeds, hydrologic changes | SI RPWG Oct 2017: Few EOs, med-high threats. 2018 RPC: At least one EO on private land. | SI RPWG Oct 2017: Maintain INPS RARE; recommend for USFS & BLM Special Status. | GP2 | Y | S | BLM Craters of Moon, Shoshone, Upper Snake, & Challis FOs | ||
| Argemone munita ssp. rotundata (only ssp. in ID) | Prickly-poppy | RARE | G4T4 S1 | 2020 RPC approved/ A. Halford; 2016 RPC approved as SH/ Karie Pappani | 1/7/2016 (NA); Reranked 10/11/2019 (v3.186) | Peripheral | FNA, IMF, Jepson Manual | 3 recent + 3 historic | Canyon?, Cassia, Oneida | Moderate (open slopes, foothills) | Low: grazing, roads, recreation, weeds, climate change, but ruderal species | Jan2016 SI RPWG: Canyon County historic observation by Pat Packard. Oneida County 1936 collections. Unverified SE Idaho record. 2016 RPC: Discussion on possibly introduced, but nearby Oregon records (Mansfield, Holte) and long-lived seedbank (Corbin) suggest native occurrences. Oct2019 SIRPWG: Reranked based on verification of recent records. | Jan2016 SI RPWG: Recommend as RARE based on historic records. Oct2019 SIRPWG & 2020 RPC: Rank S1 based on recent records | S review | N | S | BLM Burley & Pocatello FOs | ||
| Artemisia campestris ssp. borealis var. purshii | A. campestris ssp. borealis (NatureServe name); A. campestris ssp. purshii; A. borealis (ITIS) | Boreal Wormwood | G5T5 S1 (NatureServe only ranks to borealis, not purshii) | SP1 | Y | S(N) | |||||||||||||
| Artemisia sp. novum ‘bruneau’ | Feb2013: Not in NatureServe Explorer. | S review | N | S | |||||||||||||||
| Asclepias asperula | Spider milkweed | RARE | G5 S1 | 2018 RPC approved/ Lynn Kinter | 11/18/2016 (v 3.186) | Peripheral | IMF | 2 | Franklin | Moderate to Broad (open woodlands, chaparral, grasslands, roadsides) | Medium: development, agriculture, grazing, roads | Nov 2016 SI RPWG: Only two collections, old (1938, 1976), but habitat likely still present. 29 June 2017 Lynn verfied extant. | SI RPWG Nov 2016: Add to INPS RARE. | Not listed | S | ||||
| Aspicilia rogeri | Aspicilia fruticulosa, Circinaria rogeri | Rimmed lichen/ coral lichen | RARE | G2G3 S2S3 | 2020 RPC approved/ J. Strickland | 11/27/2018 (v3.186) | Regional Endemic; Core | Brodo 2016 | 30 | Bear Lake, Butte, Clark, Custer, Jefferson, Lemhi,Owyhee | Moderate (badlands in low or black sagebrush) | Very High-High: climate change, drought, weeds, livestock trampling, roads/fences, fuel breaks | 6/16/2014: A. fruticulosa dropped at 2009 RPC since it was misapplied and corrected to A. rogeri (for Roger R.). But 2011 RPC results just shows A. fruticulosa; now corrected to A. rogeri. | GP3 | Y | S | BLM Four Rivers, Owyhee, Pocatello, Challis FOs | ||
| Asplenium septentrionale | Northern Spleenwort | ||||||||||||||||||
| G5 S1 | SP1 | Y | S | ||||||||||||||||
| Asplenium viride | Asplenium trichomanes-ramosum | Green Spleenwort | |||||||||||||||||
| G5 S1 | SP1 | Y | S | ||||||||||||||||
| Astragalus adanus | Ctenophyllum adanum (Fl. Rocky Mts.); Cnemidophacos (No. Amer.Fl.) | Boise Milkvetch | RARE | G2+ S2 | 2014 RPC Approved/ A. Halford | 2/5/2014 (V3.1) | Regional Endemic/ core | IMF | 71 | Ada, Blaine, Boise, Camas, Canyon, Cassia, Custer, Elmore, Gooding, Idaho, Twin Falls, Washington | Moderate (canyon terraces and rolling plains, sagebrush, Doug-fir, and submontane brush) | High | Feb2014: Many occurrences threatened by development, fires, and weeds. | Feb 2014: Change to S2, retain on Rare list; question about Global ranking (change to G2/endemic); occ. In NV or UT? No, limited to Idaho (per Ertter post-RPC). | GP3 | Y | S | BLM Shoshone FO | |
| Astragalus amblytropis | Challis Milkvetch | G3+ S3 | GP3 | Y | S | BLM Challis FO | |||||||||||||
| Astragalus amnis-amissi | Lost River Milkvetch | G3+ S3 | GP3 | Y | S | BLM Upper Snake & Challis FOs; Challis NF | |||||||||||||
| Astragalus anserinus | Goose Creek Milkvetch | RARE | G2 S1 | 2014 RPC approved/ D. Clay, J. Strickland | 1/30/2013 (V3) | Local Endemic | IMF | 5 (total 15 in its entire range) | Cassia | Narrow to very narrow | High | Feb 2014: discussed at RPWG. RPC: Changed county to Cassia. Fire, invasives, unstable soils are threats. Roger: Fire rehab projects have been implemented right over the top of pops. In Utah but NOT in ID. Rose L. does plant need unstable soils to persist? Michael M. natural disturbance seems okay but if it is beyond the natural level may be detrimental. Lynn K. disturbance helps remove competing veg. Roger- surface erosion from trampling causes threat to plants. Differentiate between threats that have higher impact from those with lower level effects. | Keep as S1, retain on current lists, USFWS candidate, BLM, USFS Region 4 sensitive, INPS rare list | GP2 | Y | S | BLM Burley FO; Sawtooth NF? | ||
| Astragalus aquilonius | Lemhi Milkvetch | RARE | G3+ S3 | 2016 RPC approved/ Jessica Irwin | 1/7/2016 (V3.1) | Subregional endemic/ core | FPNW | about 69 | Butte, Custer, Lemhi | Narrow to broad | Low | Jan2016 SI RPWG: Updated rank based on recent observations. 2016 RPC: Calculated rank S4, but assigned rank S3 based on increased climate change threats, habitat specificity, and Idaho endemic. | Jan2016 SI RPWG: Recommend maintain RARE. | GP3 | Y | S | BLM Upper Snake, Challis, Salmon FOs; Challis NF | ||
| Astragalus arrectus | Palouse Milkvetch | RARE | G2G4 S1 | 2014 RPC approved/ J. Lichthardt | 4/9/2013 (V3.1) | Edge | FPNW | 10-16 | Benewah, Clearwater, Custer, Idaho, Latah, Lewis, Nez Perce, Valley | Narrow | Very High | Feb 2014: ranking based on recent data. Not found S of Clearwater River but could be. | June2013: Recommend rank be updated from S2 to S1. | GP2 | Y | N | BLM Challis FO | ||
| Astragalus atratus var. inseptus (1 of 2 var. in ID) | Mourning Milkvetch | RARE | G4G5T3+ S3 | 2018 RPC approved/ Jacob Powell, Jennifer Miller | 1/17/2018 (v 3.186) | Local Endemic/ Core | IMF, FPNW | 34 | Blaine, Camas, Elmore, Gooding, Lincoln, Twin Falls | Narrow: clay soils in sage/grass on specific lava flows | High: Range improvements, grazing, post-fire annual grasses and seedings. | SI RPWG Jan 2018: INPS RARE, recommend BLM Special Status Type 3. | S-monitor | Y | S | BLM Four Rivers, Birds of Prey, Shoshone FOs | |||
| Astragalus bisulcatus var. bisulcatus (only var. in ID) | Two-grooved Milkvetch | G5T5 S2 | High: Grows in remnants of Palouse Grassland | S-sensitive | Y | S | BLM Upper Snake & Salmon FOs | ||||||||||||
| Astragalus bodinii | Bodin's milkvetch | RARE | G4 SH | 2022 RPC approved/ C. Prentice | 2/14/2022 (v 3.186) | Peripheral | FPNW2 | 1 historic | Custer | Very Narrow (grassy river bottoms; probably calcipillic) | High: Agriculture, grazing, trampling | 2022 RPC: Add to list. B.Legler investigated collection data to verify this collection was in fact from Mackay, Idaho. Dec 2021 SIRWPG: the single Idaho record (Nelson from 1911) verified by B. Legler. | Feb 2022 SIRPWG: Survey what little public land exists in this area's habitat (ex: Leslie Butte mine on BLM). Location is almost certainly private and likely extirpated. | Not listed | Y | S | |||
| Astragalus conjunctus var. conjunctus (only var. in ID) | Stiff Milkvetch | RARE | G4 TNR S3 | 2016 RPC approved/ Beth Corbin; 2018 RPC approved update/ Lisa Harloe | 11/10/2015 (V 3.186); 1/17/2018 (V3.186) | Peripheral | IMF, FPNW | 37 | Owyhee | Moderate (sagebrush slopes) | Medium: fire & fire restoration including non-native drill seeding, fuelbreaks, grazing, wild horses | Feb2013: NatureServe says only variety in Idaho is var. conjunctus. Nov2015 SI RPWG: Updated rank based on recent observations. 2016 RPC: Consensus for S3. Jan2018 SI RPWG update with post-Soda Fire observations. No change in rank/status. 2018 RPC: Post-fire, some sites recovered, but still concerns with non-native drill seeding areas. | Nov2015 RPWG: Recommend maintain RARE and BLM Special Status. Monitor Soda Fire and rehab effects. 2018 RPC: Continue to monitor. | S-sensitive | Y | S | BLM Bruneau, Owyhee, Jarbidge FOs | ||
| Astragalus cusickii var. packardiae (1 of 4 var in ID) | Packard’s Milkvetch | RARE | G5T1+ S1 | 2011 RPC Approved/ M. Mancuso | 10/19/2011 (V2.0) | Local Endemic/ Core | IMF | 6 | Payette | Very Narrow | Very High | Feb2014: BSU genetic work supports distinctiveness of var. packardiae | Feb2013: Retain S1, Rare list | GP1 | Y | S | BLM Four Rivers FO | ||
| Astragalus cusickii var. sterilis (1 of 4 var in ID) | Cusick's Milkvetch | RARE | G5T2 S1 | Feb2014: Not re-ranked. Genetic work supports distinctiveness of var. sterilis. | GP3 | Y | S | BLM Owyhee FO | |||||||||||
| Astragalus diversifolius | Mesic Milkvetch | G2 S1 | GP2 | Y | S | BLM Upper Snake, Challis, Salmon FOs; Challis & Targhee NFs | |||||||||||||
| Astragalus gilviflorus | Threeleaf Milkvetch | G5 S2 | Feb2013: NatureServe says only variety in Idaho is var. gilviflorus. | S-sensitive | Y | S | BLM Upper Snake FO | ||||||||||||
| Astragalus jejunus var. jejunus | Starveling Milkvetch | G3T3 S2 | GP3 | Y | S | BLM Potatello FO; Caribou NF | |||||||||||||
| Astragalus leptaleus | Park Milkvetch | G3G4 S3 | S-monitor | Y | S | BLM Challis & Salmon FOs | |||||||||||||
| Astragalus mollissimus var. thompsoniae (only var. in ID) | Thompson's woolly locoweed | RARE | G5 T4 S1 | 2022 RPC approved/ D. Mansfield | 12/8/2021 (v 3.2) | Disjunct | IMF | 3 | Owyhee | Narrow (chalk hills) | High: Livestock, weeds, OHVs, potential mining | 2022 RPC: Add to list. Dec 2021 SIRPWG: Recent collections; population size unknown | Recommend BLM manage as special status | Not listed | Y | S | BLM Bruneau & Owyhee FOs | ||
| Astragalus molybdenus | Astragalus shultziorum | Molybdenum Milkvetch | G3 | Feb2013: ITIS says accepted name is A. molybdenus var. shultziorum; USDA plants says accepted name is A. molybdenus. NatureServe only recognizes A. molybdenus, and none of these websites say it's in Idaho. | S review | N | S | ||||||||||||
| Astragalus mulfordiae | Mulford's Milkvetch | G2 S2 | GP2 | Y | S | BLM Four Rivers, Bruneau, Birds of Prey, and Owyhee FOs | |||||||||||||
| Astragalus newberryi var. castoreus | Newberry's Milkvetch | G5T5 S2 | S-monitor | Y | S | BLM Bruneau, Owyhee, Jarbidge, & Burley FOs | |||||||||||||
| Astragalus oniciformis | Picabo Milkvetch | G3+ S3 | GP3 | Y | S | BLM Craters of Moon & Shoshone FOs | |||||||||||||
| Astragalus paysonii | Payson's Milkvetch | G3 S3 | GP3 | Y | N,S | BLM Upper Snake & Cottonwood FOs; Payette, Targhee?, Bitterroot & Nez Perce NFs | |||||||||||||
| Astragalus purshii var. lagopinus (1 of 5 var. in ID) | Hare's-foot milkvetch | RARE | G5T2T4 S1 | 2016 RPC approved/ Barbara Ertter | 4/17/2015 (V3.185) | Peripheral | IMF | 2 | Ada, Owyhee | Narrow to Very Narrow (shallow volcanic clay soil in sagebrush) | High | Apr2015 SI RPWG: High threats to Ada County occurrence. 2016 RPC: Mansfield students' genetic work confirms identification of Ada County occurrence. | Apr2015 SI RPWG: Recommend add as RARE. 2016 RPC: Recommend this as a priority plant for USFWG to focus on. | not on list | Y | S | BLM Four Rivers, Birds of Prey, Bruneau, Owyhee, Jarbidge, & Challis FOs | ||
| Astragalus purshii var. ophiogenes (1 of 5 var. in ID) | Snake River Milkvetch | G5T3 S3 | S-monitor | Y | S | BLM Four Rivers, Birds of Prey, Bruneau, Owyhee, Jarbidge, & Shoshone FOs | |||||||||||||
| Astragalus tetrapterus | Four-wing Milkvetch | ||||||||||||||||||
| G4G5 S1 | SP1 | Y | S | BLM Owyhee, Jarbidge, & Burley FOs | |||||||||||||||
| Astragalus vexilliflexus var. nubilus (1 of 2 var. in ID) | White Clouds Milkvetch | G4T2+ S2 | GP2 | Y | S | Challis, Payette & Sawtooth NFs | |||||||||||||
| Astragalus vexilliflexus var. vexilliflexus (1 of 2 var. in ID) | Bent-flower Milkvetch | ||||||||||||||||||
| RARE | G4T4 S1 | 2014 RPC approved/ A. Hanson | 2/7/2013 (V 3.1) | Disjunct | PNW, Barneby | 2 | Valley | Narrow (subalpine ridges, Challis volcanics) | Very High | Feb2013: Habitat degraded to significant degree. Feb 2014: High elevation, whitebark pine sites. Michael M. USDA Plants Map is wrong (might be var. nubilis' map!); should delete Bonner and Lemhi Co. locations on this list (Done!). | Feb2013: Bonner and Lemhi popns should be revisited. Needs to be added to USFS list. Recommend keeping INPS list at S1. Feb 2014: Deleted Bonner/Lemhi in Column K. Threat due to proximity to old Stibnite mine. | SP1 | Y | S | |||||
| Astragalus yoder-williamsii | Mud-flat Milkvetch | RARE | G3 S1S2 | 2020 RPC approved/ H. Hovis | 11/27/2018 (v3.186) | Local Endemic; core | IMF | 36 | Owyhee | Narrow: Deep organic soils in swales | High: grazing, roads, fuelbreaks, weeds, drought, climate change | Nov 2018 SIRPWG: Documented long & short-term declines in populations. 2020 RPC: Declines in some but not all populations (trampling, water lines); additional unsurveyed potential habitat. Some EOs on private lands. Need to update rank calculator based on RPC assigned rank. | Nov 2018 SIRPWG: Recommend change status to BLM Type 2. 2020 RPC: Continue to monitor trends and revisit at future RPC. | GP3 | Y | S | BLM Bruneau, Owyhee, & Jarbidge FOs | ||
| Blepharidachne kingii | King Eyelash Grass | ||||||||||||||||||
| RARE | G4 S1 | 2018 RPC approved/ Beth Corbin | 1/17/2018 (v 3.186) | Peripheral | IMF | 1-2 | Owyhee | Moderate (cobbly surface ashy soil in sagebrush/salt desert shrub) | Medium: weeds, wildfire | Jan 2018 SI RPWG: Steeply declining numbers at the one verified EO between 1995 and 2017. | Jan 2018 SI RPWG: Maintain as INPS RARE and BLM Special Status. 2018 RPC: Continue to monitor. | SP1 | Y | S | BLM Owyhee FO | ||||
| Boechera rollinsiorum | Rockcress | RARE | G1+ S1 | 2018 RPC approved/ Jim Strickland | 11/18/2016 (v 3.186) | Local Endemic, Core | FNA Vol. 7 | 2 | Blaine | Narrow (steep metamorphosed igneous chip rock) | Unknown. Collections are near roads, potentially road work, invasive spp., herbicides, and climate change. | Nov 2016 SI RPWG: New species published in 2006 (specimen previously called Arabis lasiocarpa). Not yet in NatureServe. Known only from near Galena Summit. | Nov 2016 SI RPWG: Add to INPS RARE. Recommend USFS add as special status. | Not listed | S | ||||
| Botrychium crenulatum | Crenulate Moonwort | RARE | G4 S1 | 2020 RPC approved/ Ben Legler | 4/25/19 (V3.186) | Sparse | PNW | 4 | Boise, Custer, Elmore, Kootenai | Narrow | Low | GP3 | Y | N,S | Targhee, Clearwater? & Idaho Panhandle NFs | ||||
| Botrychium lanceolatum var. lanceolatum | Lanceleaf Moonwort | G5T4 S3 | S-sensitive | Y | N | Clearwater, Idaho Panhandle & Nez Perce NFs | |||||||||||||
| Botrychium lineare | Narrowleaf Grapefern | ||||||||||||||||||
| RARE | G2? SH | 2016 RPC approved/ J. Lichthardt | 12/10/2015 (3.1) | Sparce | D. Farrar 2006 | 1 historic | Bonner? | Narrow | Unknown | Dec2015 NI RPWG: Only one record from 1925. 2016 RPC notes: "Someone said Don. F said it was and Lynn said he said it was lineare. Need to confirm?" | Dec2015 NI RPWG: Recommend Rare | GP1 | Y | N | Payette?, Sawtooth, Clearwater, Idaho Panhandle? & Nez Perce? NFs | ||||
| Botrychium minganense | Mingan moonwort | G5 S3 | Discussed but not ranked at 2018 RPC/ Derek Antonelli, Jennifer Costich-Thompson | Not yet ranked | Sparse | FNA | 20 | Boundary, Bonner, Kootenai, Shoshone, Latah, Clearwater, Idaho, Lemhi | Not yet determined | 2018 RPC: Easily confused with B. ascendens and B. crenulatum. Need to revisit EOs to confirm species. Submit info to IdNHP and Jennifer Costich-Thompson. Need to confirm which EOs have been verfied by Wagner. | NIRPWG: Not yet ranked | SP3 | N,S | Clearwater, Idaho Panhandle & Nez Perce? NFs | |||||
| Botrychium neolunaria | Previously within B. lunaria | North American moonwort | RARE | GNR S1 | 2020 RPC approved/ Derek Antonelli | 3/20/19 (V3.186) | Sparse | PNW | 2 | Lemhi | Narrow | Unknown | 2016 RPC: Bjork 6378, Boundary Co species is B. montanum per B. Legler. Irwin 6930, Lemhi Co, confirmed as B. neolunaria by D. Farrar. Irwin 7413, Custer Co., was mostly B. minganense and remainder could not be confirmed by B. Legler as B. neolunaria. So a single confirmed specimen in Lemhi Co for Idaho. 2020: An additional population was confirmed in Lemhi County | S Review as B. lunaria | S (ranked by N) | ||||
| Botrychium simplex | Least Grapefern | G5 S2 | SP2 | Y | N,S | Sawtooth NF; Clearwater, Idaho Panhandle & Nez Perce NFs | |||||||||||||
| Botrychium tunux | tunux moonwort | RARE | G3? S1 | 2016 RPC approved/ D. Antonelli | 12/10/2015 (3.1) | Sparce | 1 | Custer | Narrow | Unknown | Dec2015 NI RPWG: Information of occurrence comes from D. Farrar. 2016 RPC: M. Mancuso asked "Is the specimen collected by Kim Pierce and was originally collected as B. lunaria but is not in the mix as this?" 2016 Post-RPC: Derek's response: Not sure who made the collection. D. Ferrar's original email stated 'B.tunex extends in ou western mountains from Alaska to Nevada. I have a single specimen from Idaho, collected from Railroad Ridge near Stanley. I'm sure it is elsewhere in Idaho as well.' | Dec2015 NIRPWG: Recommend add as Rare | not on list | N | S | ||||
| Bouteloua gracilis | Blue Grama | ||||||||||||||||||
| G5 S2 | SP1 | Y | S | BLM Salmon FO | |||||||||||||||
| Bryoria tortuosa | Bryoria fremontii | lichen | G5 S2 | S-sensitive | Y | N | |||||||||||||
| Bryum calobryoides | Beautiful Bryum | G3 SH | GP3 | Y | S | Boise NF | |||||||||||||
| Buxbaumia aphylla | Bug-on-a-stick | G5 S1 | SP1 | Y | S | Clearwater?, Idaho Panhandle? & Nez Perce NFs | |||||||||||||
| Buxbaumia viridis | moss | G4G5 S3 | S-monitor | Y | N,S | Clearwater, Idaho Panhandle & Nez Perce NFs | |||||||||||||
| Calamagrostis tweedyi | Cascade Reedgrass | RARE | G3 S2 | 2016 RPC approved/ L. Abell | 12/10/2015 (3.1) | Sparce | PNW, Manuals of Grasses of US & NA | 5 | Idaho, Lemhi, Benewah?, Shoshone? | Moderate | High | 2016 RPC: Benewah and Shoshone Co. occurrences were listed in an INHP report but have not found vouchers so they are ?. | Dec2015 NI RPWG: Recommend Rare | GP3 | Y | N,S | Payette NF | ||
| Calandrinia ciliata | Red Maids | G4 S1 | S-monitor | Y | S | ||||||||||||||
| Calicium corynellum | lichen | GNR SNR | S review | N | N,S | ||||||||||||||
| Calliergonella cuspidata | Hypnum cuspidatum, Calliergon cuspidatum | Calliergonella Moss | RARE | G5 S1S2 | 2022 RPC approved/ Derek Antonelli | 1/18/22 (V3.186) | Sparse | FNA, Common Mosses of W. OR and WA, Some Common Mosses of BC | 4 plus 1 historic | Bonner, Boundary, Elmore, Idaho | Unknown | 2022 RPC: Add to list. | Not listed | Y | N,S | Idaho Panhandle NF, Clearwater NF, Boise NF | |||
| Calyptridium roseum | Cistanthe rosea (NatureServe name, but we're using FPNW2) | mock pussypaws | RARE | G5 S2 | 2020 RPC approved/ A. Halford | 11/27/2018 (v3.186) | Sparse | IMF, FPNW2, FNA | 16 | Blaine, Butte, Elmore, Valley | Narrow (open sandy, silty, or clay soil) | Medium: weeds, recreation, OHVs, solar array, livestock, roads, fire suppression | 2020 RPC: Cheatgrass threats might be higher than indicated. | 2020 RPC: Add to BLM Special Status list. | Not listed | S | |||
| Calystegia sepium ssp. angulata (only ssp. in ID) | wild morning-glory | RARE | G5T5 S2 | 2014 RPC approved/ B.Corbin | 2/12/2014 (V3.1) | Sparse | IMF | 1 (recent) to 11 (including historic) | Bonner, Canyon (H), Franklin (H), Jerome (H), Idaho (I), Owyhee, Payette (H), Twin Falls (H), Washington (H) | Narrow | Unknown | Feb2014: Some occurrences may be introduced, making the one native occurrence very rare. RPC: Some herbarium specimens marked as introduced populations. Don Mansfield found it in 2013 in Owyhee Co. Probably more to be found. Some uncertainty about number of intro vs. native pops. Beth C. many of ID collections are old. Using only recent occurrence gives S1 rank; using all occ gives S2. | Feb2014: Add to Rare List, and BLM & FS lists. Using Best Available Information, an S1S2 is defensible. Barb Ertter it's tough to know what's native vs. intro, given the human occupation in SW ID. Karl H. how does this affect the group's credibility, with something that seems so widespread/weedy, but, yet, we're saying it's threatened? Roger rec. reviewing this taxon because it appears to be weedy. Barb Ertter species like this (weedy, widespread) should receive lower priority, less resources. Michael M. some G5 spp. on Idaho list because they're S1, S2 in ID. Beth Corbin reminded that the type location is native. Derek A. use info we have currently to make decision. Roger uncomfortable with S1S2 recom; says we should review further. Barb E. wetland situations kind of tricky; rec. S2. | not on list | N | S | BLM Owyhee FO | ||
| Camassia cusickii | Cusick's Camassia | RARE | G4 S2 | 2020 RPC approved/ S. Smith | 2/27/2019 (v 3.186) | Subregional Endemic/ Edge | FPNW2 | 7 | Adams, Blaine, Idaho, Washington | Moderate (rich, moist, and well-drained soil) | Medium: cattle grazing, devlopment, roads, horticultural collecting, recreation & elk trampling, water diversion, weeds, climate change | S-monitor | Y | S | BLM Four Rivers & Birds of Prey FOs; Payette NF | ||||
| Camissonia boothii ssp. boothii | Booth's Evening-primrose | G5T4 S2 | S review | N | S | BLM Shoshone FO | |||||||||||||
| Camissonia pterosperma | Pygmy Suncup | G4 S2 | S-sensitive | Y | S | BLM Owyhee & Upper Snake FOs | |||||||||||||
| Carex aboriginum | Indian Valley Sedge | G1+ S1 | GP1 | Y | S | BLM Four Rivers FO | |||||||||||||
| Carex abrupta | Abrupt Sedge | G5 S1 | S review | N | S | ||||||||||||||
| Carex cordillerana | Formerly part of Carex backii. (Some specimens identified as C. saximontana.) | cordilleran sedge | RARE | G3G4 S2 | 2018 RPC approved/ Derek Antonelli | 1/25/2017 (v3.186) | Sparse | FNA | 12 | Bonner, Bonneville, Owyhee, Clearwater, Elmore, Fremont, Nez Perce, Kootenai, Lemhi, Gem, | Unknown | 2018 RPC: Herbaria specimens are listed as C. cordilerana, C. backii, C. saximontana. All are thought to be C. cordillerana. Specimens still listed as C. backii and C. saximontana need to be verified as C. cordillerana. Check new FPNW. | Jan 2017 NIRPWG: S2, RARE | Not listed | N,S | ||||
| Carex crawei | Crawe's Sedge | G5 S1 | S review | N | S | ||||||||||||||
| Carex ebenea | Ebony Sedge | G5 | Feb2013: NatureServe says it's not in Idaho. | S review | N | S | |||||||||||||
| Carex engelmannii | Carex breweri var. paddoensis | Engelmann's Sedge | G4G5 S2 | S-sensitive | Y | S | |||||||||||||
| Carex flava | Yellow Sedge | Rare | G5 S3 | 2020 RPC approved/ Derek Antonelli | 3/17/19 (V3.186) | Sparse | PNW | 30 | Adams, Boise, Bonner, Boundary, Custer, Elmore, Idaho, Lemhi, Valley | Narrow | Medium (calculated as high) | 2020 RPC: Calculated threats high but assigned Medium because EO reports of threats were not really harsh. Range extent calculated with much unknown white space. | S-monitor | Y | N,S | Idaho Panhandle NF | |||
| Carex fuliginosa | Carex misandra (used by NatureServe and USDA) | Shortleaf Sedge | G5 | Feb2013: NatureServe Explorer says not in Idaho. C. fuliginosa used by ITIS, BONAP, and FNA. | S review | N | S | ||||||||||||
| Carex holmgreniorum | Holmgren's sedge | RARE | GNR S1 | 2022 RPC approved/ B. Legler | 3/19/2021 (v 3.186) | Peripheral | Reznicek, A.A. & D.F. Murray. 2013 | 1 | Caribou | narrow (moist, alkaline or calcareous substrates) | High: hydrologic changes, gas pipeline, grazing, weeds, recreational vehicle traffic along reservoir edge | 2022 RPC: Add to list. Lots of discussion about the interesting traverine wetland site. Ben looked at all available specimens of this Carex complex. Mar 2021 SIRPWG: Only record is a 1993 collection, from Idaho Dept of Transportation land. Relatively newly published; not yet in NatureServe. | 2022 RPC: Revisit this and other travertine wetland sites in SE Idaho. | Not listed | Y | S | ID Dept of Transportation | ||
| Carex idahoa | Idaho Sedge | G3 S2 | GP2 | Y | S(N) | BLM Potatello & Salmon FOs | |||||||||||||
| Carex incurviformis | Seaside Sedge | RARE | G4G5 S1 | 2020 RPC approved/ J. Miller | 4/24/2019 (v 3.186) | Peripheral | FPNW2, FNA, Jepson | 2 | Custer, Fremont | Narrow/ Very Narrow (moist alpine or subalpine tundra, wet rock ridges fellfields, or frost scars) | High: climate change, drought, weeds, recreation | Feb2013: C. i. incurviformis is only variety in Idaho. Feb2020: Varieties not recognized (FPNW2) | Apr 2019 SIRPWG: Add to Forest Service species of conservation concern. | SP2 | Y | S | Challis NF | ||
| Carex limosa | Mud Sedge | RARE | G5 S3 | 2022 RPC approved/ Derek Antonelli | 12/14/21 (V3.2) | Sparse | FPNW, FNA, Field Guide to Sedges of PNW, Field Guide to InterMtn Sedges | 24 | Bonner, Boundary, Custer, Fremont, Idaho, Kootenai, Valley | Narrow | Unknown but probably High to Medium like similar species in the same type of habitat | 2022 RPC: Add to list. Several RPC comments indicated many other populations may be undocumented. Number of populations would have to increase by 55 to reach the next higher category | Not listed | Y | N,S | Payette NF, Clearwater NF, Targhee NF, Nez Perce NF, Idaho Panhandle NF | |||
| Carex livida | Livid Sedge | RARE | G5 S3 | 2020 RPC approved/ Derek Antonelli | 10/3/19 (V3.186) | Sparse | PNW | 22 | Boise?, Bonner, Custer, Fremont, Kootenai, Lemhi, Teton, Valley | Narrow | Medium | S-sensitive | Y | N,S | Idaho Panhandle NF | ||||
| Carex occidentalis | Western Sedge | RARE | G4 S2 | 2018 RPC approved/ Beth Corbin & Don Mansfield | 1/17/2018 (v 3.186) | Peripheral | IMF, FNA Vol. 23 | 4-10 | Bannock, Boise?, Bonneville, Caribou?, Cassia?, Clark, Fremont, Lemhi, Owyhee, Twin Falls | Moderate (open sagebrush/grass slopes) | Unknown, but Owyhee site heavily grazed. | Jan 2018 SIRPWG: Need to verify some collections. Owyhee record previously identified as C. tumulicola; need to update that species. 2018 RPC: Updated C. tumulicola. | Jan 2018 SI RPWG: Move from Review to Rare. Recommend Special Status for BLM and USFS. | S review | N | S | BLM Upper Snake FO | ||
| Carex rostrata | beaked sedge | RARE | G5 S3 | 2018 RPC approved/ Derek Antonelli | 12/7/2017 (v3.186) | Peripheral | FPNW, FNA | 6 | Bonner, Kootenai | Very narrow (fens and bogs) | Low: adjacent logging | Dec 2017 NIRPWG: The common C. utriculata keys out to C. rostata resulting in hundreds of misidentified specimens. 2018 RPC: Look at new FPNW and Carex Working Group Field Guide; contact Barbara Wilson for identifications. Fen threats (hydrology, etc) - Need a separate follow-up on the larger issue of fen protection and ranking. | Dec 2017 NIRPWG: S3, RARE | State Sensitive | N | ||||
| Carex straminiformis | Mt. Shasta Sedge | RARE | G5 S3 | 2020 RPC approved/ J. Strickland | 10/11/2019 (v3.193) | Sparse | FPNW2, FNA, Jepson | 24 | Adams?, Bear Lake, Blaine, Boise, Custer, Idaho, Lemhi, Valley | Moderate (Rocky, gravelly soils at mod/high elevation) | Medium-Low: livestock trampling, climate change | 2020 RPC: Don Mansfield sees it a lot in sub-alpine rocky areas; low number of unique buffered observation polygons (EOs)despite 44 specimens. | S-sensitive | Y | S | ||||
| Carex tumulicola | Foot-hill Sedge | RARE | G4 SH | 2016 RPC approved/ Rose Lehman; 2018 RPC update/ Corbin & Mansfield | 4/17/2015 (NA) | Peripheral | FPNW | 1 (Bannock) historic, questionable | Bannock | Moderate (grassy slopes, dry meadows) | Unknown (but historic site on private land, likely now extirpated). | Apr2015: Need to follow up with Oregon Carex Working Group on specimen identification. 2016 RPC: Existing collections may not be correctly identified under current taxonomy. Bannock Co site may be extirpated. Need to check Owyhee Co site. Taxon is on list based upon those historical collections. Recommend: SH. Specimens need to be reviewed. Revisit when determination is made. 2018 RPC: Previous record from Owyhee County determined to be C. occidentalis. | Apr2015 SI RPWG: Recommend as RARE based on historic records, or drop if specimen determined not to be C. tumulicola. Owyhee Co specimen (Hurd 1990) need to be verified. 2018 RPC: Owyhee Co specimen is C. occidentalis. | S review | N | S | BLM Pocatello FO | ||
| Carex vernacula | native sedge | RARE | G5 S2S3 | 2022 RPC approved/ B. Corbin | 12/4/2020 (v 3.2) | Peripheral | FPNW2, IMF, FNA | 7 | Custer, Fremont, Lemhi | Narrow (subalpine meadows) | Medium-Low: climate change, possibly roads | 2022 RPC: Add to list. Dec 2020 SIRPWG: Targhee NF site is within an RNA. | Recommend Challis, Sawtooth, Targhee NFs manage as special status. | Not listed | Y | S | Challis, Sawtooth, & Targhee NFs | ||
| Cassiope mertensiana ssp. mertensiana (1 of 2 ssp. in ID) | Western Bell-heather | RARE | G5T5 S2 | 2016 RPC approved/ K. Pekas | 11/18/2015 (3.1) | Disjunct | PNW | 8 | Bonner, Boundary, Custer, Lemhi, Idaho | Narrow | Very High | 2016 RPC: Consensus – add to list as S2. Idaho Co location not likely correct. Climate change was listed as a threat but not entered into rank calculator. Question as to making an S1S2 to accommodate the threat of Climate change. 2016 Post-RPC: Inputting threats as Very High still resulted in the Rank Calculator of S2, so stick with S2. | Nov2015 NI RPWG: Recommend Rare | S review | N | N,S | |||
| Castilleja christii | Christ's Indian-paintbrush | ||||||||||||||||||
| RARE | G1+ S1 | 2011 RPC Approved/ B. Corbin | 8/26/2011 (V2.0) | Local Endemic/ Core | IMF | 1 | Cassia | Very Narrow (unique geology, mountain top) | High | 2011: Retain S1 | GP1 | Y | S | Sawtooth NF | |||||
| Castilleja peckiana | Peck's Indian-paintbrush | RARE | G3G4 S2 | 2018 RPC approved/ Beth Corbin & D. Mansfield | 11/18/2016 (v 3.186) | Subregional endemic, Edge | IMF | <11 | Adams, Owyhee | Moderate (mid-high elevation sagebrush or open woods) | Medium: grazing, weeds, climate change | Feb2013: NatureServe Explorer says not in Idaho. Nov 2016 SI RPWG: 11 specimens in unique locations. 2018 RPC: Mansfield - similar to C. miniata, so we may be overlooking C. peckiana. | Nov 2016 SI RPWG: Move from Review to RARE. Recommend for BLM and USFS Special status. | S review | N | S | BLM Owyhee FO | ||
| Castilleja pulchella | Showy Indian-paintbrush | G4 S2 | GP3 | Y | S | ||||||||||||||
| Catapyrenium congestum | new taxonomy= Heteroplacidum congestum | lichen | RARE | G4 S2 | 2014 RPC approved/ R.Rosentreter | 2/7/2013 (V 3.1) | Sparse | McCune | 13 | Ada, Bingham, Elmore, Jefferson, Lemhi, Owyhee | Narrow (natric soils) | High to Very High | Feb2013: Probably under-recorded. NatureServe Explorer says only in Idaho, even though it's also in CO and UT. Feb 2014: Slickspot type of habitat. Threats from fire, grazing. | Feb2013: Should remain on BLM list. Recommend updating rank to S2S3 from S2. Feb 2014 RPC: Rank S2. | S-sensitive | Y | S | BLM Four Rivers, Birds of Prey, Owyhee, Jarbidge, & Upper Snake FOs | |
| Ceanothus prostratus | Mahala-mat Ceanothus | ||||||||||||||||||
| G5? S1 | SP1 | Y | S | BLM Four Rivers FO | |||||||||||||||
| Cercocarpus montanus | Colorado Birchleaf Mountain-mahogany | ||||||||||||||||||
| G5 S2 | SP1 | Y | S | BLM Pocatello FO | |||||||||||||||
| Chaenactis cusickii | Cusick's Pincushion | RARE | G3 S1S2 | 2020 RPC approved/ S. Smith | 2/27/2019 (v 3.186) | Regional Endemic; Edge | FPNW2, FNA | 9 (incl 3 historical) | Owyhee | Narrow (Clay soils from volcanic ash and tuff) | Very High: mining, OHVs, weeds, cattle trampling, ag conversion | Feb 2019 SIRPWG: Declining trends due to mining & OHVs. 2020 RPC: Assigned rank S1S2 (EDIT RANK CALCULATOR), based on number of occurrences and population size. | GP3 | Y | S | BLM Owyhee FO | |||
| Chaenactis stevioides | Broad-flower Pincushion | RARE | G5 S2 | 2018 RPC approved/ Jessa Davis & Morgan Cheyney | 1/17/2018 (v 3.186) | Peripheral | FNA Vol. 21, FPNW | 27 | Ada, Elmore, Owyhee | Moderate (sandy/gravelly slopes & flats in shrublands) | High: mining, climate change?, fire-caused type conversion | Jan 2018 SI RPWG: Large year-to-year fluctuations. | Jan 2018 SI RPWG: Maintain as RARE. Recommend BLM Special StatusType 2. | S-sensitive | Y | S | BLM Four Rivers, Birds of Prey, Bruneau, Owyhee & Jarbidge FOs | ||
| Chrysosplenium tetrandrum | Northern Golden-carpet | ||||||||||||||||||
| G5 S1 | SP1 | Y | S | ||||||||||||||||
| Cicuta bulbifera | Bulb-bearing Water-hemlock | G5 S2 | S-sensitive | Y | N,S | BLM Coeur d'Alene FO; Idaho Panhandle NF | |||||||||||||
| Cirsium brevifolium | Palouse Thistle | RARE | G3 S2 | 2014 RPC approved/ A.Sondenaa, B.McClarin | 12/11/2013 (V3.1) | Peripheral | PNW | 41-54 | Adams, Benewah, Boise, Camas, Idaho, Latah, Valley | Moderate | Very high (fragmentation, weeds) | Beth Corbin is sceptical of Owyhee Co report, Don Mansfield hasn't seen it in Owyhee County. | Feb2014: Retain S2 and on Rare list. | GP3 | Y | N | BLM Cottonwood FO | ||
| Cladonia bellidiflora | Cup Lichen | ||||||||||||||||||
| G5 S1 | SP1 | Y | S | ||||||||||||||||
| Cladonia luteoalba | lichen | G2G3 S1 | GP2 | Y | S | ||||||||||||||
| Claytonia multiscapa | Claytonia lanceolata var. flava | Lanceleaf Springbeauty | G4? S1 | S-monitor | Y | S | BLM Upper Snake FO | ||||||||||||
| Cleomella hillmanii var. goodrichii | Cleomella hillmanii | Hillman's Rhombo-pod | G4G5 T1 SNR | S review | N | S | BLM Owyhee & Salmon FOs | ||||||||||||
| Cleomella plocasperma | Alkali Rhombopod | ||||||||||||||||||
| RARE | G4 S1 | 2011 RPC approved/ H. Beck | 10/19/2011 (V2.0) | Peripheral | IMF, PNW | 1 | Owyhee | Narrow (alkaline wet meadow) | Low | 2011: Change to S1 from SH, based on recent collection. | SP1 | Y | S | BLM Bruneau & Jarbidge FOs | |||||
| Collomia debilis var. camporum | Flexible Alpine Collomia | G5T2 S2 | GP2 | Y | S | Sawtooth NF | |||||||||||||
| Crepis bakeri ssp. idahoensis (only ssp. in ID) | Idaho hawksbeard | RARE | G4T2 S1 | 2018 RPC approved/ LeAnn Abell | 3/14/2017 (v3.186) | Core Regional Endemic | FPNW, FNA | 21 | Latah, Nez Perce, Adams, Ada, Washington | Very High: grazing, weeds, fire | 2018 RPC: Very High threats indicate S1. | Mar 2017 NIRPWG: S2, RARE. 2018 RPC: Very high threats, assigned S1 rank. | GP2 | N,S | BLM Cottonwood FO | ||||
| Cryptantha caespitosa | Caespitose Cat's-eye | G4 S1 | S-monitor | Y | S | BLM Pocatello FO | |||||||||||||
| Cryptantha celosioides | Cocks-comb Cat's-eye | G5 S3 | S review | N | S | BLM Cottonwood FO | |||||||||||||
| Cryptantha propria | Malheur Cryptantha | G4 S2 | S review | N | S | BLM Four Rivers & Owyhee FOs | |||||||||||||
| Cryptantha sericea | Oreocarya sericea | Silky Cat's-eye | |||||||||||||||||
| To be ranked | G4 SNR | In Process/ L. Kinter | 8 documented, possibly up to 12 | Bear Lake | Narrow (Appears to be specific to Twin Creek Limestone) | Feb 2014 RPWG: previously dropped species C. breviflora was actually C. sericea. No C. breviflora in Idaho. Lynn will run through the rank calculator. | Feb 2014: Still needs to be ranked before presenting to RPC. Recommend the BLM updates the name from C. breviflora to C. sericea on their SSP list. 6/16/2014: Both C. breviflora and C. sericea are on BLM list as duplicates, so recommend C. breviflora is dropped. | SP1 | Y | S | BLM Pocatello FO | ||||||||
| Cryptantha simulans | Pinewoods Cat's-eye | G4 | Feb2013: NatureServe Explorer says not in Idaho. | S review | N | S | |||||||||||||
| Cuscuta denticulata | Desert Dodder | ||||||||||||||||||
| RARE | G4G5 S1 | 2016 RPC approved/ Lynn Kinter & Liana Cabiles | 1/7/2016 (V3.1) | Peripheral | IMF, FPNW | 2 | Clark, Idaho | Moderate (open sagebrush flats) | Medium | Jan2016 SI RPWG: Updated rank based on recent observations. 2016 RPC: Consensus for S1. | Jan2016 SI RPWG: Recommend maintain RARE. | SP1 | Y | S | BLM Upper Snake & Cottonwood FOs | ||||
| Cymopterus acaulis var. greeleyorum | Greeley's Wavewing | ||||||||||||||||||
| G5T2 S2 | GP2 | Y | S | BLM Birds of Prey, Bruneau, Owyhee & Jarbidge FOs | |||||||||||||||
| Cymopterus davisii | Davis' Wavewing | G3+ S3 | GP3 | Y | S | Sawtooth NF | |||||||||||||
| Cymopterus douglassii | Douglass' Wavewing | R | G3+ S3 | 2020 RPC approved/ L. Kinter & C. Matheny | 10/11/2019 (v3.186) | Local Endemic; core | FPNW2 | 10 | Custer, Lemhi | Very Narrow (alpine carbonate) | Medium-Low: climate change, recreation trampling, oil/gas/mining exploration | Oct 2019 SIRPWG: 5 EOs within Research, Natural, or Proposed Natural Areas. 2020 RPC: Well-mapped EOs, so a more precise/ smaller area of occupancy delineated. Assigned S3 based on stability of population sites. | GP3 | Y | S | Challis, Salmon & Sawtooth NFs | |||
| Cymopterus ibapensis | Ibapah Spring-parsley | G4 S2 | S review | N | S | ||||||||||||||
| Cyperus bipartitus | Cyperus rivularis | Shining Flatsedge | G5 S2 | S-monitor | Y | S | |||||||||||||
| Cyperus odoratus | C. speciosus, C. erax, C. engelmannii | Rusty Flatsedge | RARE | G5 S1 | 2016 RPC approved/ D. Antonelli | 11/18/2015 (3.1) | Peripheral | FNA | 2 | Washington | Narrow | 2016 RPC: Consensus S1. | Nov2015 NI RPWG: Recommend Rare | S review | N | S | |||
| Cypripedium parviflorum var. pubescens (only var. in ID) | greater yellow lady's slipper | RARE | G5T5 S1 | 2018 RPC approved/ Juanita Lichthardt | 11/15/2017 (v3.1) | Sparse | FPNW, FNA | 3-4 | Boundary, Bonner, Blaine | High: weeds, closing canopy, OHMV, site drying, artifical flooding | Nov 2017 NIRPWG: Rank was calculated at S2 but adjusted to S1, because disjunct population inflated range extent. 2018 RPC: Mike Hays - Pac River site was misidentified, so not 5 EOs. Juanita - two other records close together, so maybe only 3 EOs. | Nov 2017 NIRPWG: S1, RARE | SP1 | N,S | Idaho Panhandle NF | ||||
| Delphinium glaucescens | Delphinium glaucescens var. multicaule (varieties not recognized in FNA & NatureServe) | Electric Peak Larkspur | RARE | G3G4 S3S4 | 2018 RPC approved/ Karie Pappani | 1/17/2018 (v 3.186) | Regional Endemic, Core | FPNW, FNA | 42- 51 | Blaine, Butte, Custer, Elmore, Lemhi | Narrow (subalpine & upper elevation shrub & forest openings) | Medium-low: climate change, slope erosion, road impacts | Jan 2018 SI RPWG: In remote areas with a fair number of records, but recommend for conservation concern due to limited range. | Jan 2018 SI RPWG: Recommend move from Review to RARE. Recommend USFS special status. 2018 RPC: Include on RARE, although S3S4. | S review | N | S | ||
| Dermatocarpon lorenzianum | lichen | G2 S1 | GP2 | Y | S | BLM Four Rivers FO | |||||||||||||
| Dimeresia howellii | Doublet | G4? S2 | SP2 | Y | S | BLM Bruneau, Owyhee & Challis FOs | |||||||||||||
| Diphasiastrum sitchense | Lycopodium sitchense (IDNHP & NatureServe name) | Alaskan Clubmoss | G5 S2 | S-sensitive | Y | N,S | |||||||||||||
| Douglasia idahoensis | Idaho Douglasia | G3+ S3 | GP2 | Y | N,S | Boise, Payette?, Bitterrroot? & Nez Perce NFs | |||||||||||||
| Downingia bacigalupii | Bacigalup's Downingia | RARE | G4 S2 | 2018 RPC approved/ Jennifer Miller | 10/13/2017 (v 3.186) | Peripheral | IMF, Jepson Manual | 23 | Adams, Gooding, Lincoln, Owyhee | Narrow (lake margins, vernal pools) | High: livestock trampling, weeds, roads, private lands | Oct 2017 SI RPWG: Several previous EOs were misidentified. High threats. | Oct 2017 SI RPWG: Maintain RARE. Revisit older records. Recommend BLM maintain as Special Status. | S-sensitive | Y | S | BLM Bruneau, Owyee & Shoshone FOs | ||
| Downingia insignis | Parti-color Downingia | ||||||||||||||||||
| G4 S1 | SP1 | Y | S | BLM Owyhee FO | |||||||||||||||
| Draba fladnizensis | White Arctic Whitlow-grass | G5 S1 | SP2 | Y | S | ||||||||||||||
| Draba globosa | Draba apiculata | Rockcress Draba | G3 S2 | SP2 | Y | S | BLM Challis FO; Challis NF | ||||||||||||
| Draba hitchcockii | Lost River Whitlow-grass | G3+ S3 | S review | N | S | BLM Upper Snake FO | |||||||||||||
| Draba incerta | Yellowstone Whitlow-grass | G5 S2 | S-sensitive | Y | N,S | BLM Challis FO | |||||||||||||
| Draba oreibata var. oreibata | Subalpine Whitlow-grass | G4T4 SNR | S review | N | S | BLM Challis FO | |||||||||||||
| Draba trichocarpa | Stanley Creek Whitlow-grass | G2+ S2 | GP2 | Y | S | Challis & Sawtooth NFs | |||||||||||||
| Eatonella nivea | White Eatonella | RARE | G4G5 S3 | 2014 RPC approved/ H. Beck | 2/5/2014 (V 3.1) | Peripheral | IMF, PNW | 34 | Ada, Adams, Custer, Elmore, Owyhee, Lemhi | Narrow | High-Medium (substance disturbance) | Feb2014: This was ranked previously, but documentation was misplaced, so calculator was rerun. It was on the BLM list, then dropped in 2011, but added again in 2012. 2014 RPC: Threatened by motorcycle disturbance of habitat; livestock trailing/trampling. Lots of habitat in Bruneau FO; tough to survey/document this annual species; tough to assess trend for same reason. | Feb2014: Retain S3 and on BLM list and INPS rare list. Chris M. Owyhee, Lemhi records are dated. Alexa: Elmore, Owyhee Co. are only records showing on PNW Herbaria. Lisa this species is good example of yesterday's G4G5/S3 discussion we had yesterday. Holly: Level of threats keep this species on rare list. Tough to see but her inventory has recorded that it's not everywhere that habitat exists Seems to depend on level of disturbance in the "washes" where she has inventoried. Not sure if weeds even affect it due to its early growth cycle. Karen C. may want to review/revisit this species because of its rank. Put effort toward more imperiled species. May not even warrant S3 rank. Need to look at timing of threats, too. Beth Corbin revisit later; discuss at next RPC. Derek A.: would like presentation from agencies on how they use the Rare Plant List generated by the RPC. Chris M: have expansive list; let agency determine what species will be justified on their specific lists. Kay B: doesn't know how new planning rules will affect; S3 species are on Forest Sensitive List; likes having S3s on list because then she can use professional descretion as to whether or not a species will need protection during project implementation. Barb E: concentration of various ranked/rare species makes a site more important. Rose L. seconded Barb's comment. | S-sensitive | Y | S | BLM Four Rivers, Birds of Prey, Bruneau, Owyhee & Jarbidge FOs | ||
| Eleocharis elliptica | Eleocharis tenuis | Slender Spikerush | G5 S1 | SP2 | Y | S | |||||||||||||
| Epilobium canum ssp. garrettii | Zauschneria garrettii | Hummingbird-trumpet | G5T4 S1 | S review | N | S | |||||||||||||
| Epilobium palustre | Marsh Willowherb | G5 S3 | S-monitor | Y | N(S) | BLM Upper Snake FO; Idaho Panhandle NF | |||||||||||||
| Epipactis gigantea | Giant helleborine | RARE | G3G4 S2S3 | 2018 RPC approved/ Juanita Lichthardt | 3/15/2017 (v3.186) | Widespread | FPNW, FNA | up to 69 | Boundary, Bonner, Nez Perce, Idaho, Adams, Valley, Lemhi, Boise, Custer, Owyhee, Elmore, Camas, Gooding Jerome, Twin Falls, Clark, Madison | High: Livestock, recreation, road work, stream diversion, weeds | 2018 RPC: L. Abell & M. Hays observed some EOs decreasing/disappeared & hydrologic changes. RPC adjusted rank to S2S3. | Mar 2017 NIRPWG: S3, RARE. 2018 RPC: S2S3 based on apparently declining trend, and threats. | SP2 | N,S | BLM Owyhee, Shoshone, Upper Snake & Cottonwood FOs; Bitterroot?, Idaho Panhandle? & Nez Perce NFs | ||||
| Eremogone loisiae | Arenaria kingii var. uintahensis (misapplied) | Lois' sandwort | RARE | GNR S1 | 2020 RPC approved/ B. Corbin | 4/24/2019 (v3.186) | Peripheral | IMF | 5 | Bear Lake, Franklin, Oneida | Narrow (rock outcrops in upper elevation sagebrush slopes) | High: agriculture, weeds, climate change, recreation, roads, housing development | 2020 RPC: Has this been misidentified or has it been missed in collections? Was previously included in Arenaria kingii var uintahensis. Did not complete an extensive herbarium search but do believe Idaho is northernmost extent of the previous var. | Apr 2019 SIRPWG: Recommend Caribou-Targhee NF manage as special status. 2020 RPC: Recommend review herbarium specimens of other A. kingii varieties to confirm range of new species. | Not listed | S | |||
| Ericameria discoidea var. winwardii (1 of 2 var. in ID) | Ericameria winwardii | Winward's Whitestem Goldenbush | RARE | G4G5T1 S1 | 2014 RPC approved/ L. Kinter | 2/4/2013 (V3), discussed 2/5/2013 | Local Endemic/ core | Dorn and Dalmatier 2005. Likely not in any key | 4 | Bear Lake | Very narrow, Twin Creek Limestone | Very high-high | Feb 2014:We went over this spp. again. Surveys done in this area, high threats-OHV. ID had 4 of 5 populations, 1 in WY, thus we did the G and S rank. RPC: OHV threats. Some impact due to weeds. | Feb 2014: Recommend retaining on T1 S1, Rare list. Updating the taxonomy to be consistent with NatureServe. Updated the synonym name (switched them). Retain on INPS list, BLM, and add to or retain on USFS list. | GP1 | Y | S | BLM Pocatello FO | |
| Ericameria nauseosa var. nana | Chrysothamnus nauseosus ssp. nanus (name used by IDNHP) | Dwarf Gray Rabbitbrush | |||||||||||||||||
| G5T4 S3 | S-monitor | Y | N(S) | BLM Coeur d'Alene FO | |||||||||||||||
| Ericameria parryi var. montana | Chrysothamnus parryi ssp. montanus | Parry's Rabbitbrush | |||||||||||||||||
| G5T2 S1 | GP1 | Y | S | Targhee NF | |||||||||||||||
| Erigeron humilis | Low Fleabane | G5 S2 | S-monitor | Y | S | ||||||||||||||
| Erigeron katiae | Katie's fleabane | RARE | G1G2 S1 | 2020 RPC approved/ L. Kinter | 2/27/2019 (v 3.186) | Subregional Endemic; Edge | Utah Flora 2008 | 1 | Oneida | Unknown (sagebrush?) | High: weeds, agriculture, fire, roads, cattle trampling | Feb 2019 SIRPWG: Published in 2007; only one Idaho collection known, from 1971. | 2020 RPC: Recommend review other collections of E. pumilus for E. katiae. The location did not convert to cheatgrass because of the dominance of crested wheatgrass and bulbous bluegrass; agricultural land reverted to sagebrush. Consider historic? Almost 50 years old but site has not changed and original collector is still alive. Recommend keep as S1 until revisit. | Not listed | S | ||||
| Erigeron salmonensis | Salmon River Fleabane | G3+ S3 | X N | GP3 | Y | N,S | |||||||||||||
| Erigeron watsonii | Watson's fleabane | RARE | G3G4 S1 | 2020 RPC approved/ C. Prentice | 12/6/2019 (v3.193) | Subregional Endemic; Edge | FNA, IMF | 1 | Cassia | Narrow (alpine, rocky or gravelly slopes and ridges) | High: climate change, recreation, weeds, roads | Feb 2019 SIRPWG: 2 Idaho collections (one EO) | 2020 RPC: Add as RARE. | Not listed | S |
This is the start of the file's text. The full file is on GovTribe.
File details come from the government source that posted it. Updated .