Attachment D Invasive Botanical Species List 2023.pdf
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- Attached to
- 2026 Mottet Botany Surveys
- Solicitation number
- 1166896
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Department of Agriculture Forest Service
About this file
This document is an appendix listing invasive botanical species designated for 2023 in Oregon and Washington. The list contains approximately 80 plant species organized by scientific code, Latin name, and common name, with corresponding regulatory status in each state and priority designation.
The species are classified by their invasive status in Oregon and Washington using letter designations (A, B, or C), where Status A indicates eradication is recommended, Status B indicates containment is recommended, and Status C indicates monitoring is appropriate. The Priority column indicates whether each species has been designated as a priority invasive species (yes or no). Notable species on the list include Canada thistle, bull thistle, poison hemlock, purple loosestrife, Japanese knotweed, Scotch broom, diffuse knapweed, spotted knapweed, and Himalayan blackberry. The list serves as a reference document for invasive species management and control efforts in the Pacific Northwest region.
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Attachment D: Invasive Botanical Species List 2023
PLANTS Name Common Name Status
Oregon Status
Washington Priority ACRE3 Acroptilon repens hard heads B yes AECY Aegilops cylindrica jointed goatgrass B C yes ANOF Anchusa officianalis common bugloss B B yes ARAB3 Artemisia absinthium absinthium C yes BASC5 Bassia scoparia burningbush B B yes BRAL4 Bryonia alba white bryony A B yes CACH42 Cardaria chalepansis lenspod whitetop B yes CADR Cardaria draba whitetop B C yes CAAC Carduus acanthoides spiny plumeless thistle A B yes CANU4 Carduus nutans nodding plumeless thistle B B yes CEDI3 Centaurea diffusa diffuse knapweed B B yes CENI2 Centaurea nigra lesser knapweed B yes CESO3 Centaurea solstitialis yellowstar thistle B B yes CESTM Centaurea stoebe micranthos spotted knapweed B B yes CHJU Chondrilla juncea rush skeletonweed B B yes CIAR4 Cirsium arvense Canada thistle B C no CIVU Cirsium vulgare bull thistle B C no COMA2 Conium maculatum poison hemlock B B yes COAR4 Convolvulus arvensis field bindweed B C yes CRVU2 Crupina vulgaris common crupina B A yes CYOF Cynoglossum officinale hounds tongue B B no CYSC4 Cytisus scoparius Scotch broom B B yes DACA6 Daucus carota Queen Anne's lace C yes ECVU Echium vulgare common viper's bugloss B yes ELRE4 Elymus repens quackgrass no EUES Euphorbia esula leafy spurge B B yes GELU Geranium lucidum shiny-leaved geranium B B yes GERO Geranium robertianum stinky Bob B B yes HIAU Hieracium aurantiacum orange hawkweed A B yes HICA10 Hieracium caespitosum meadow hawkweed B B yes HIPI2 Hieracium piloselloides tall hawkweed A B yes HYNI Hyoscyanum niger black henbane C yes HYPE Hypericum perforatum common St. Johnswort B C no HYRA3 Hypochaeris radicata hairy catsear C yes IRPS Iris pseudoacorus paleyellow iris B C yes LEVU Leucanthemum vulgare oxeye daisy C yes LIDA Linaria dalmatica Dalmatian toadflax B B yes LIVU2 Linaria vulgaris butter and eggs B C yes LYSA2 Lythrum salicaria purple loosestrife B B yes ONAC Onopordum acanthium Scotch thistle B B yes PHAR3 Phalaris arundinacea reed canarygrass B C no POCU6 Polygonum cuspidatum Japanese knotweed B B yes PORE5 Potentilla recta sulphur cinquefoil B B yes RUAR9 Rubus armeniacus Himalayan blackberry B C yes RULA Rubus laciniatus cutleaf blackberry C yes SAAE Salvia aethiopsis Mediterranean sage B A yes SECE Secale cereale cultivated rye C no
Attachment D: Invasive Botanical Species List 2023
PLANTS Name Common Name Status
Oregon Status
Washington Priority SEJA Senecio jacobaea tansy ragwort B B yes SEVU Senecio vulgaris old man in the spring C no SILAA3 Silene latifolia alba bladder campion C no TACA8 Taeniatherum caput-medusae medusahead B C no TAVU Tanacetum vulgare common tansy C yes TOAR Torilis arvensis spreading hedgeparsley yes TRTE Tribulus terrestris puncturevine B B yes VEDU Ventenata dubia North Africa grass no
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