B08_Attachment_1_GJFO_SSS_Inventory_Stds_March-2024.pdf

BLM Grand Junction Field Office (GJFO)

Standards for Contractor Inventories for

Special Status Plants, Significant Plant Communities

& Noxious Weeds

March 2024

Penstemon debilis

Sclerocactus glaucus

Phacelia submutica

I. DETERMINING THE NEED FOR SURVEYS

A clearance survey will be required for all proposed surface-disturbing activities within potential habitat for special status plants or significant natural plant communities See Appendix A for

Definition of Terms. The GJFO Ecologist will determine whether the proposed action may affect potential habitat for rare plants or significant plant communities after reviewing aerial photos, soils maps, topographic maps, maps of known populations, Colorado Natural Heritage

Program data, and after consulting with the U.S. Fish and Wildlife Service. The intensity of the survey may vary depending upon the probability of occurrence of a special status plant species and upon the degree of disturbance associated with the proposed action.

A noxious weed survey is also required for all proposed ground-disturbing activities. According to GJFO’s “Noxious and Invasive Weed Management Plan for Oil and Gas Operators, June

2007”, and the “Grand Junction Integrated Weeds Management Plan, June 2018”, all proposed project areas will be inventoried prior to ground-disturbing activities. If noxious weeds are found, they will be treated (if timing is appropriate) or removed (if plants have formed seeds) prior to implementation of ground-disturbing activities.

II. DETERMINING WHICH SPECIES AND COMMUNITIES TO INCLUDE IN

SURVEY

Prior to initiating any inventories, the contractor must contact the GJFO Ecologist to obtain a current list of special status plant species which are known or are likely to occur in the Grand

Junction Field Office. See Appendix B for the list of GJFO Special Status Plant Species. A discussion of which species need to be included in the survey and the timing, intensity, and extent of the survey will be conducted at that time.

The contractor will access the Colorado Natural Heritage Program’s (CNHP) website

(http://www.cnhp.colostate.edu) to compile a current list of significant natural plant communities. The CNHP list of “natural communities” is extensive and includes communities of varying rarity. Only those that have the highest rank, i.e., either 1 or 2 on the state or global list, are considered “significant” and will be given special management consideration by the GJFO.

The contractor will provide this list to the GJFO Ecologist who will determine whether any of these community types are likely to occur within the project area. A large percentage of significant natural plant communities are riparian and are often not affected by proposed actions.

In those instances, in which an activity may affect a significant natural plant community, a survey would be required and the community would be given consideration similar to BLM sensitive plant species. See Appendix C for a list of Significant Natural Plant Communities that have been found in the GJFO as of December 2023.

A survey must be conducted for all Colorado state-listed noxious weeds. See Appendix D for a list of Colorado Noxious Weed Species as of August 30, 2023. Access the Colorado

Department of Agriculture website for the most current list

(https://ag.colorado.gov/conservation/noxious-weeds).

http://www.cnhp.colostate.edu/

III. SURVEY GUIDELINES

A. Timing

1. Reconnaissance may be conducted at any time of year when the ground is snow-free to determine whether a project site contains potential habitat. If potential habitat is found to exist on the site, then a survey must be conducted during the time at which the plant is able to be positively identified.

2. Many special status plants can only be located and positively identified when in flower. The flowering period varies by species from early March to mid-August.

Refer to the Colorado Rare Plant Field Guide to determine typical flowering periods.

3. Multiple site visits may be necessary during a single field season to ensure that surveys are conducted during the appropriate life stage of all target species in the area.

4. Reference populations (i.e. known occurrences of the target species) must be visited to confirm that target species are flowering or otherwise identifiable prior to initiating surveys. For assistance in locating a reference population, contact the

GJFO Ecologist.

5. Because Phacelia submutica (De Beque phacelia) does not emerge every year, the survey protocol has been modified for this species. De Beque phacelia is an annual plant which does not germinate in dry years. Surveys for this species must be conducted in a “reliable year”, a year when De Beque phacelia has been identified at nearby known sites. In the absence of a reliable year suitable habitat should be identified and mapped.

6. Unless otherwise specified, surveys are valid for a period of three years.

B. Extent

Clearance surveys must include an assessment of all potential habitats within the project area, including a buffer. The standard buffer for well pads, roads and pipelines is discussed below.

However, the necessary buffer may vary depending on the nature and scope of the project and the status of the special status plant species potentially affected.

1. For well pads, the survey should include a 40-acre buffer (approx. 200 meters on all sides of the center stake). This would accommodate the size required for a multiple-well pad and most shifts or relocations of the pad without requiring further surveys. In cases where the well pad/disturbance is unusually large, the proponent may want to consider a larger survey to accommodate 200m movement of the pad. If movement is determined necessary, and surveys are not large enough to accommodate movement, the proponent risks denial or delay of their project.

2. For roads and pipelines in federally listed plant habitats, including Parachute penstemon

(Penstemon debilis), and De Beque phacelia (Phacelia submutica), a survey of 200 meters on either side of the edge of disturbance will be required. In Colorado hookless cactus (Sclerocactus glaucus/Sclerocactus dawsoniae) habitat, a survey of 100 meters on either side of the edge of disturbance will be required for cactus and Sensitive Plant

Species. Larger surveys may be needed depending on the project, and FWS guidance.

Outside of federally-listed plant habitats, roads and pipelines will require a survey of

30 meters on either side of the edge of disturbance. This distance may be increased on steep slopes to account for potential disturbance due to the cut and fill slopes, dust, and erosion following construction.

If special status plants extend beyond the project area and standard survey buffer, the contractor will attempt to determine the areal extent of the occurrence and the approximate number of individuals within the proposed disturbance and the adjacent occupied habitat extending up to

300 meters beyond the disturbed area. This information is used to determine the percent of the local occurrence that would be potentially impacted by the project. If the population is too large to estimate, quadrats or plots may be required to aid in determining population size.

Additionally, Designated Critical Habitat (DCH) that overlaps the proposed project must be addressed in the survey (presence or absence of constituent elements, and project proximity to

DCH).

Throughout the project area, surveys for noxious weed should match the size of the plant survey

(100 meters in cactus habitat, or 30 meters in BLM Sensitive plant habitat).

C. Intensity

The objective of clearance survey is to cover 100% of potential habitat within the project area and the associated buffer. Use the “intuitive-controlled” method for surveying the project area.

Within the project area, there may be habitat types that are considered potential habitat for one or more special status plants and other areas that do not constitute potential habitat. Surveys within areas of potential habitat should be conducted by walking along transects spaced closely enough to enable observation of all potential habitat between transect lines. Widths may vary somewhat depending on the target plant species and on the height and density of other vegetation.

When Colorado hookless cactus (Sclerocactus glaucus/Sclerocactus dawsoniae) is encountered, transect widths should narrow to 1-2 meters (3-6 feet) depending on vegetation. De Beque phacelia (Phacelia submutica) habitat should be mapped and population size should be estimated. To limit habitat disturbance, transects are not required for project clearance surveys for De Beque phacelia. The attached Field Form

(Appendix E) should be used for all De Beque phacelia habitat recorded. For other species

(when encountered), a transect width of 3-5 meters (10-15 feet) should be appropriate. If out of season surveys are approved by BLM, transect widths will be narrowed.

Areas that do not constitute potential habitat for any special status plants or significant natural plant communities do not have to be surveyed for these species.

Intensity of surveys may vary depending on the probability of a special status plant occurring within the project area, the degree of habitat disturbance expected to result from the action, and the federal status of the plant.

Note: It is recommended that surveyors count (estimate) by individual plants rather than clumps, rosettes, or stems as the SSPS features class uses population size.

Pin flags or other flagging may be used during the actual survey; however, all markers must be removed once survey work is completed to reduce the likelihood of unauthorized removal of the rare species.

If the target species are not found, clearly indicate in the Survey Report whether the surveyed habitat appeared suitable for the target species, and provide photographic documentation:

1. If habitat appeared suitable but the target species was not observed, indicate whether the species may have gone undetected, and why. Assess the likelihood that the target species was present but undetected.

2. If surveyed habitat is deemed unsuitable for the target species, provide an explanation of the criteria used for making this determination.

IV. SPECIAL STATUS PLANT SPECIES and NOXIOUS WEEDS DATA COLLECTION

Special Status Plant Species (SSPS) data must be submitted in the provided geodatabase with all fields populated. It is recommended that all special status plant species, and significant natural plant communities found within the surveyed area be mapped using the

ArcGIS Field Maps application on a tablet or device that supports mobile data collection.

For SSPS, all location information and associated attributes will be contained in the field schema provided by BLM. If an individual plant or small occurrence is encountered, with a diameter less than 9 meters (4.5m radius) a point taken in the center of the population will suffice. For occurrences that follow a linear feature, such as a road or wash, and are long but <9m wide map as a line. Populations larger than this will be delineated with a polygon. Individual projects may require specific guidance.

The GJFO Ecologist will send a .zip file containing all components of the required special status species geodatabase for survey data collection. The .zip file includes .pdf SSPS Field Schema

Guide which describes all components of the .zip file, all data fields in each feature class, definitions. The .zip file also includes a user guide for the BLM Metadata Editor. Do not modify any part of the geodatabase. All spatial data should be checked for accuracy and sent to

GJFO Ecologist.

Noxious weeds will also be mapped using the Treatment and Infestation schema, outside of the special status species geodatabase. List C noxious weeds will be mapped if their extent is minor

(less than 0.1 acres in size). If List C noxious weed infestations are greater than 0.1 acre in size or are widespread throughout the survey area, describe their general location within the project area and relative abundance in the Survey Report. A zip file containing all components of the required noxious weeds geodatabase for survey data collection will be provided by BLM.

If habitat within the project area is determined to be apparently suitable for SSPS, but unoccupied, include a shapefile of the habitat boundary. Please provide the projection and datum that the data is referenced to. If coordinates are in decimal degrees, they must have a decimal degrees value to five places. Northings and eastings are preferred.

The required feature classes for each survey area are:

1. Plant_site_assessment_polygon – this is a polygon feature that denotes the overall area surveyed.

2. Plant_site_assessment_track – this is a line feature that records the track of the surveyor within the survey area.

3. Ssps_point – Special status plant species point location of an individual or small population of target species less than 9m wide (radius of 4.5M), that are separated by more than 25m.from individual plants of the same species.

4. Ssps_line – Special status plant species line location of a linear feature of a target species

5. Ssps_poly – Special status plant species polygon location of a large population of target species.

Again, refer to the SSPS Field Schema Guide for all data attributes for collection in each feature class before beginning surveys. Contact GJFO Ecologist with any questions regarding the data required for collection.

V. PERSONNEL QUALIFICATIONS

All contractors conducting plant surveys must be approved by the GJFO Ecologist prior to conducting fieldwork.

Resumes should be submitted for every surveyor who will be working on a botanical survey.

Resumes should include educational background (colleges and universities attended, and any diplomas and degrees received), botanical survey work history, and any related work experience.

All personnel conducting surveys for special status plants should have strong backgrounds in plant taxonomy and have experience with the local flora. A degree in Botany, Plant Science, or

Plant Ecology, with at least 24 semester hours in botany is recommended. Two field seasons of surveying experience for special status species in the geographic area are also highly recommended.

A combination of coursework and appropriate experience may be substituted if it is determined that it meets the requirements. Such qualifications help to ensure that all special status plants and noxious weeds occurring in the area to be surveyed will be located and properly identified.

VI. REPORTING

A. A Biological Survey Report should be prepared and submitted to the GJFO Ecologist.

After acceptance of the survey data and report by BLM, a copy may be given to the proponent with individual occurrences and polygons buffered by a minimum of 20 meters. The report should include, but is not necessarily limited to, the following:

1. Date(s) of the survey.

2. Names of all personnel involved in the survey.

3. Descriptions of the general habitat of the area, including plant communities, topography, soil types, and/or geologic formations.

4. Survey method, including transect widths that were walked. Include the size of the area and buffer zones that were surveyed. Provide a shapefile/map of all areas surveyed (transect lines walked) including areas where no special status plants were found.

5. Discussion of the special status plant species and/or significant natural plant communities searched for, and any special status species/communities found during the survey. Include an assessment of the size and density of special status plant populations, and a discussion of the number of plants that would be directly or indirectly impacted by the action, as well as the percentage of the nearby population that would not be impacted. The unit of measurement (clumps, rosettes, stems or other) should be clearly specified. If actual counts were not possible due to the size or density of the population, include a description of the methodology used to estimate the total population.

6. An assessment of the vigor of the special status plant population (e.g. evidence of disease, predation, mortality) and any threats to the population (e.g. abundance of invasive species, excessive recreational activity, overgrazing).

7. If no special status species are found, include an assessment of whether the site is believed to contain potential habitat, and a rationale for this determination. At times, it is not possible to ascertain whether a specific project location comprises potential habitat based on topographic maps, aerial photos, soils and vegetation maps, or other available data prior to conducting a survey. If during the site visit, it is determined that the area does not constitute potential habitat (i.e. the soils are not appropriate for the target species), this should be documented for future reference.

8. Noxious Weeds: A discussion of noxious weeds found. Include UTMs of noxious weed infestations. Noxious weeds should be mapped, unless a continuous understory occupies the entire project area and mapping is not practical (e.g. a large cheatgrass infestation). GIS shapefiles of noxious weed infestations should be submitted with the report. Include the size of the infestation and approximate number of individuals or density of occurrence.

9. Recommended mitigation measures to minimize direct and indirect impacts to any special status plants or significant plant communities found.

10. A comprehensive list of plant species occurring on the project site, by habitat type.

11. Maps with an aerial photo or topo map as a base layer showing the proposed disturbance boundary, survey perimeter, and special status plant, community or noxious weed locations. Include a scale bar and north arrow in the map.

12. Document the presence of special status plant species or significant plant communities with at least one high-quality photograph of the plant/community and one of the occupied habitat. If areas of the project were determined to provide potential habitat, but no special status plants were found during the survey, include photographs of these habitats as well.

B. Notify the GJFO Ecologist of survey results at the conclusion of the field survey. Do not wait until submittal of the Biological Survey Report. Prompt submission of all survey results is recommended as spot-checking for accuracy and correct species identification may be performed by GJFO staff prior to final acceptance of reports.

Failure to provide notification and the requested survey products (see below) may directly result in the delay of approval for proposed actions associated with the survey(s), or denying the report, and/or requesting additional survey information prior to acceptance.

APPENDIX A: DEFINITION OF TERMS

Sensitive plant species are species designated by the BLM State Director, and do not include those special status species that are formally designated by the U.S. Fish and Wildlife Service

(USFWS) as federally endangered, threatened or proposed for listing under the Endangered

Species Act (ESA).

Special status plants are species either officially listed as threatened or endangered, proposed for listing, or are candidates for listing under the provisions of the Endangered Species Act (ESA);

or are designated as sensitive species by the BLM State Director.

Significant Natural Plant Communities (SNPCs) are natural plant communities that are: 1) globally rare, 2) rare within the State, or 3) have not been substantially altered by human activity.

The first two categories include vegetative communities in which the individual component species may not be rare but the unique association of plant species is rare or uncommon. The third category of SNPCs involves plant community types which are significant not because of their rarity but because they represent exemplary examples of relatively undisturbed natural communities with few nonnative species. Some occurrences are known within GJFO, but other areas have yet to be surveyed.

Noxious weeds are defined by Colorado State law as “plant species that are not indigenous to the state of Colorado and meet at least one of several criteria regarding their negative impacts upon crops, native plant communities, livestock, and the management of natural or agricultural systems”.

APPENDIX B: GJFO SPECIAL STATUS PLANT SPECIES

SCIENTIFIC NAME COMMON NAME STATUS HABITAT LABEL

Penstemon debilis Parachute penstemon

FT Sparsely vegetated, south facing, steep, white shale talus of the Parachute Creek Member of the Green River Formation; 8,000-9,000 ft.

PEDE22

Phacelia submutica

(P. scopulina var.

submutica)

DeBeque phacelia

FT Sparsely vegetated, steep slopes in chocolate-brown or gray clay on Atwell Gulch and Shire

Members, Wasatch Formation. Soils often have large cracks because of the high shrink-swell potential of the clays; 4,700-6,200 ft.

PHSCS3

Sclerocactus glaucus/

Sclerocactus dawsoniae

Colorado hookless cactus/

Dawson’s hookless cactus

FT Rocky hills, mesa slopes, and alluvial benches in salt desert shrub communities; often with well-formed microbiotic crusts; can occur in dense cheatgrass 4,500-6,000 ft.

SCGL3/

SCDA

Aletes latilobus

(Lomatium latilobum)

Canyonlands aletes

S Semi-desert, foothills, shrublands, and canyons. Known to occur in Rattlesnake Cyn arches area, Colo Natl. Mon.

LOLA4

Amsonia jonesii Jones’ bluestar

S In dry, open areas with clay, sandy, or gravelly soils, in desert-steppe, rocky gorges and canyons; 4,500-5,000 ft.

AMJO

Astragalus debequaeus De Beque milkvetch

S Varicolored, fine textured, seleniferous or saline soils of Wasatch Formation- Atwell

Gulch Member; 5,100-6,400 ft.

ASDE11

Astragalus equisolensis

(A. desperatus var.

neeseae)

Horseshoe milkvetch

S Sagebrush, shadscale, horsebrush, and other mixed desert shrub communities on the

Duchesne River Formation; 4,790-5,185 ft.

Known to occur in the Gateway area

ASDEN

Astragalus musiniensis Ferrons’ milkvetch

S Gullied bluffs, knolls, benches and open hillsides; in pinyon-juniper woodlands or desert shrub communities, mostly on shale, sandstone, or alluvium derived from them;

4,700-7,000 ft.

ASMU3

Astragalus naturitensis Naturita milkvetch

S Sandstone mesas, ledges, crevices, and slopes in pinyon/juniper woodlands; 5,000-7,000 ft.

ASNA

Astragalus piscator Fisher

Towers milkvetch

S Gullied bluffs, knolls, benches and open hillsides; in pinyon-juniper woodlands or desert shrub communities, mostly on shale, sandstone, or alluvium derived from them;

4,700-7,000 ft.

ASPI6

Astragalus rafaelensis San Rafael milkvetch

S Gullied hills, washes, and talus under cliffs; in seleniferous clayey, silty, or sandy soils;

4,400-6,500 ft.

ASRA3

Camissonia eastwoodiae

(Chylismia eastwoodiae)

Eastwood evening-primrose

(Grand

Junction

Chylismia)

S Mancos shale with mat-saltbush, shadscale, blackbrush, and juniper communities; 3,900-

5,900ft

CAEA

Erigeron kachinesis Kachina daisy

S Saline soils in alcoves and seeps in canyon walls; 4,800-5,600 ft.

ERKA

Eriogonum contortum Grand buckwheat

S Mancos Shale badlands, with shadscale and other salt desert shrub communities; 4,500-

5,100 ft.

ERCO13

Frasera paniculata Tufted green gentian

S Dry, often sandy habitats, in desert shrub and pinyon-juniper communities; 4,000-6,500 ft.

FRPA2

Gilia stenothyrsa

(Aliciella stenothyrsa)

Uinta Basin gilia

S Silty to gravelly loam soils derived from

Green River or Uinta formations. In grassland, sagebrush, mountain-mahogany, or pinyon-juniper communities; 5,000-6,000 ft.

ALST12

Lygodesmia grandiflora var.

doloresensis

Dolores

River skeletonplant

S Reddish purple, sandy alluvium and colluvium of the Cutler Formation between the canyon walls and the river in juniper, shadscale, and sagebrush communities; 4,000-5,500 ft.

LYDO

Mentzelia rhizomata

(Mentzelia argillosa)

Roan Cliffs blazing star

S Steep, eroding talus slopes of shale, Green

River Formation; 5,800-9,000 ft.

MEAR5

Oreocarya osterhoutii

(Cryptantha osterhoutii)

Osterhout’s cat’s-eye

S Dry, barren sites, in reddish-purple decomposed sandstone; 4,500-6,100 ft.

CROS

Pediomelum aromaticum

Paradox breadroot

S Scattered locations in PJ zone, Glade Park PU, Pyramid Rock

PEAR7

Physaria parviflora

(Lesquerella parviflora)

Piceance bladderpod

S Shale outcrops of the Green River Formation, on ledges and slopes of canyons in open areas;

6,200-8,600 ft.

LEPA10

Physaria vicina

(Lesquerella vicina)

Uncompahgre bladderpod

S Badlands of Mancos Formation shales at the transition from PJ woodland to salt desert communities; can be in sandy soils among sagebrush; 5,700-7,500 ft.

PHVI

Thalictrum heliophilum

Sun-loving meadowrue

S Endemic to sparsely vegetated steep shale talus slopes of the Green River Formation;

6,300’-8,800’ elevation

THHE2

Townsendia strigosa Strigose

Easter-daisy

S Sandy or clay soils of dry, open places; 5,000-

9,000 ft. Whitewater area

TOST

Astragalus linifolius Grand

Junction milkvetch

* Chinle and Morrison Formations, with pinyon-juniper and sagebrush; 4,800-6,200 ft.

ASLI5

Cirsium perplexans Adobe Hills thistle

* Open areas and disturbed sites in mixed shrublands and pinyon-juniper woodslands;

5,000-8,000 ft. May occur with Phacelia submutica.

CIPE5

Mimulus eastwoodiae Eastwood monkey-flower

* Shallow caves and seeps on steep canyon walls; 4,700-5,800 ft.

MIEA

FT – Threatened

S – BLM listed sensitive species

* – Species of interest

APPENDIX C

GJFO KNOWN SIGNIFICANT PLANT COMMUNITIES

December 2023

Scientific Name Common Name Status Known Locations

Achnetherum hymenoides

Shale Barren Herbacious

Vegetation

Western Slope

Grasslands

G2/ S2 Northeast of 6&50 Reservoir, near old rail road grade

Aquilegia micrantha –

Mimulus eastwoodiae

Herbacious Vegetation

Hanging

Gardens

G2G3/

S2S3

Hwy 141, base of Sewemup Mesa, near

Montrose County line. Partially within the Sewemup Mesa WSA & the proposed Dolores River Riparian ACEC.

Arctostaphylos patula /

Ceanothus velutinus –

Ceanothus prostrates

Shrubland

Montane

Shrublands

G3/ S2 Glade Park, North of Pinon Mesa, Briar

Canyon

Atriplex confertifolia /

Achnatherum hymenoides

Shrubland

Cold Desert

Shrublands

G3/ S2 Near 2 Rd, in desert bottom

Atriplex confertifolia /

Pleuraphis jamesii

Shrubland

Cold Desert

Shrublands

G3G5/ S2 Delta County line, east of Hwy 50

Atriplex corrugata

Dwarf-shrubland

Alkali Mat

Saltbush

Shrublands

G5/ S2? South of Badger Wash along 4 Rd, east of Highline State Park

Atriplex gardneri /

Leymus salinus Dwarf-shrubland

Gardner’s Mat

Saltbush

Shrublands

G2?/ S2? Along Hwy 6&50, 2 Rd, Hwy 139, southern portion of Badger Wash ACEC

(approximately ½ of the known location are within the Badger Wash ACEC)

Atriplex gardneri /

Pleuraphis jamesii

Dwarf-shrublands

Gardner’s Mat

Saltbush

Shrublands

G3G5/

S1?

East of Highline State Park, Hwy 6&50, 25 Rd

Betula occidentalis /

Cornus sericea Shrubland

Lower Montane

Riparian

Shrublands

G3/ S1S2 Glade Park: Ryan Park, McKenzie

Canyon, Middle Canyon (of the 3 known locations, only 1 is fully on BLM…Ryan

Park)

Betula occidentalis /

Maianthemum stellatum

Shrubland

Foothills

Riparian

Shrubland

G4?/ S2 Briar Canyon, Calf Canyon (on private and BLM land)

Eleocharis rostellata

Herbaceous Vegetation

Emergent

Wetland

G3/ S2 Unaweep Seep ACEC, Calf Canyon, and the proposed Dolores River Riparian

ACEC

Forestiera pubescens

Shrubland

Foothills

Riparian

Shrubland

G1G2/ S1 Palisade ACEC & the proposed Dolores

River Riparian ACEC (all known locations fall within the 2 ACECs)

Fraxinus anomala

Woodland

West Slope

Riparian

Woodland

GUQ/ S1 Hunter Canyon

Hesperostipa comata Western Slope G2G4/ S2 North of NCA boundary along old 6&50

Great Basin Herbacious

Vegetation

Grasslands Hwy

Juniperus scopulorum /

Cornus sericea Woodland

Riparian

Woodland

G4/ S2 Glade Park, north of Payne Mesa, above the Little Dolores

Picea pungens / Cornus sericea Woodland

Montane

Riparian Forest

G4/ S2 McKenzie Canyon (North Pinon Mesa)

Pinus edulis – (Juniperus monosperma, Juniperus osteosperma)

/Hesperostipa comate

Woodland

Xeric Western

Slope Pinyon-

Juniper

Wodland

G2?/ S2 Unaweep Canyon, within the Sewemup

Mesa WSA

Pinus edulis – Juniperus osteoperma / Colegyne ramosissima Woodland

West Slope

Pinon Woodland

G3/ S2 Rough Canyon ACEC, Gateway near

Lumsden Canyon

Pleuraphis jamesii

Herbacious Vegetation

Western Slope

Grasslands

G2G4/ S1 Coon Hollow, within the proposed South

Shale Ridge ACEC

Populus balsamifera

Woodland

Montane

Riparian

Woodland

GU/ S2 Corral Canyon, near Long Canyon

Populus deltoids (ssp.

Wislizeni, ssp.

Monilifera) / Salix exigua

Woodland

Fremonts

Cottonwood

Riparian Forests

G3/ S1S2 Little Dolores River, on private and BLM

Pseudotsuga menziesii /

Acer glabrum Forest

Lower Montane

Forests

G4?/ S1 West of Douglas Pass

Rhus trilobata Rocky

Mountain Shrub

Herbacious Vegetation

Skunkbrush

Riaprian

Shrubland

G2/ S2 Coal Gulch

Sarcobatus vermiculatus /

Distichlis spicata

Shrubland

Saline

Bottomland

Shrublands

G4/ S2 Whitewater, Radio Towers area along

Hwy 50

Sarcobatus vermiculatus /

Sueda moquinii

Shrubland

Saline

Bottomland

Shrublands

GUQ/

S2S3

Badger Wash ACEC

Schoenoplectus acutus –

Typha latifolia

(Schoenplectus tabernaemontani )San

Great Plains

Marsh

G4/S2S3 Unaweep Seep ACEC

Schoenoplectus maritimus

Herbacious Vegetation

Emergent

Wetland

(Marsh)

G4/S2 Sewemup Mesa WSA

Sullivantia hapemanii –

(Aquilegia barnebyi)

Herbacious Vegetation

Sullivantia

Hanging

Gardens

G2/S2 Henderson Ridge

APPENDIX D: COLORADO NOXIOUS WEED LIST

List A – Weed species designated by the Commissioner for eradication.

African rue (Peganum harmala)

Bohemian knotweed (Fallopia x bohemica)

Camelthorn (Alhagi pseudalhagi)

Common crupina (Crupina vulgaris)

Cypress spurge (Euphorbia cyparissias)

Dyer's woad (Isatis tinctoria)

Elongated mustard (Brassica elongata)

Flowering rush (Butomus umbellatus)

Giant knotweed (Fallopia sachalinensis)

Giant reed (Arundo donax)

Giant salvinia (Salvinia molesta)

Hairy willow-herb (Epilobium hirsutum)

Hydrilla (Hydrilla verticillata)

Japanese knotweed (Fallopia japonica)

Meadow knapweed (Centaurea x moncktonii)

Mediterranean sage (Salvia aethiopis)

Medusahead (Taeniatherum caput-medusae)

Myrtle spurge (Euphorbia myrsinites)

Orange hawkweed (Hieracium aurantiacum)

Parrotfeather (Myriophyllum aquaticum)

Purple loosestrife (Lythrum salicaria)

Rush skeletonweed (Chondrilla juncea)

Squarrose knapweed (Centaurea virgata)

Tansy ragwort (Senecio jacobaea)

Yellow flag iris (Iris pseudacorus)

Yellow starthistle (Centaurea solstitialis)

List B – Weed species for which the Commissioner (in consultation with the state noxious weed advisory committee, local governments, and other interested parties) develops and implements state noxious weed management plans designed to stop the continued spread of these species.

Absinth wormwood (Artemisia absinthium)

Black henbane (Hyoscyamus niger)

Bouncingbet (Saponaria officinalis)

Bull thistle (Cirsium vulgare)

Canada thistle (Cirsium arvense)

Chinese clematis (Clematis orientalis)

Common tansy (Tanacetum vulgare)

Common teasel (Dipsacus fullonum)

Cutleaf teasel (Dipsacus laciniatus)

Dalmatian toadflax, broad-leaved (Linaria dalmatica)

Dalmatian toadflax, narrow-leaved (Linaria genistifolia)

Dame's rocket (Hesperis matronalis)

Diffuse knapweed (Centaurea diffusa)

Eurasian watermilfoil (Myriophyllum spicatum)

Hoary cress or whitetop (Lepidium draba)

Houndstongue (Cynoglossum officinale)

Hybrid knapweed (Centaurea x psammogena

Hybrid toadflax (Linaria vulgaris x L. dalmatica)

Jointed goatgrass (Aegilops cylindrica)

Leafy spurge (Euphorbia esula)

Mayweed chamomile (Anthemis cotula)

Moth mullein (Verbascum blattaria)

Musk thistle (Carduus nutans)

Oxeye daisy (Leucanthemum vulgare)

Perennial pepperweed or tall whitetop (Lepidium latifolium)

Plumeless thistle (Carduus acanthoides)

Russian knapweed (Acroptilon repens)

Russian-olive (Elaeagnus angustifolia)

Salt-cedar or Tamarisk (Tamarix chinensis, T. parviflora, and T. ramosissima)

Scentless chamomile (Tripleurospermum inodorum)

Scotch thistle (Onopordum acanthium)

Scotch thistle (Onopordum tauricum)

Spotted knapweed (Centaurea stoebe)

Sulfur cinquefoil (Potentilla recta)

Wild caraway (Carum carvi)

Yellow nutsedge (Cyperus esculentus)

Yellow toadflax (Linaria vulgaris)

List C – Weed species for which the Commissioner (in consultation with the state noxious weed advisory committee, local governments, and other interested parties) will develop and implement state noxious weed management plans designed to support the efforts of local governing bodies to facilitate more effective integrated weed management on private and public lands. The goal of such plans will not be to stop the continued spread of List C species but to provide additional education, research, and biological control resources to jurisdictions that choose to require management of these species.

Bulbous bluegrass (Poa bulbosa)

Chicory (Cichorium intybus)

Common burdock (Arctium minus)

Common mullein (Verbascum thapsus)

Common St. Johnswort (Hypericum perforatum)

Downy brome or cheatgrass (Bromus tectorum)

Field bindweed (Convolvulus arvensis)

Halogeton (Halogeton glomeratus)

Johnsongrass (Sorghum halepense)

Perennial sowthistle (Sonchus arvensis)

Poison hemlock (Conium maculatum)

Puncturevine (Tribulus terrestris)

Quackgrass (Elymus repens)

Redstem filaree (Erodium cicutarium)

Siberian elm (Ulmus pumila)

Tree of Heaven (Ailanthus altissima)

Velvetleaf (Abutilon theophrasti)

Wild proso millet (Panicum miliaceum)

APPENDIX E:

De Beque Phacelia Field Form