WAC 16-302-105
WAC 16-302-105. Seed certification — Objectionable weeds
The following weeds are considered objectionable noxious weeds for the purpose of seed certification.
english or common name botanical or scientific name Blackgrass or slender foxtail Alopecurus myosuroides Blue lettuce Lactuca tatarica Docks and sorrel Rumex spp. Field pennycress (fanweed) Thlaspi arvense Field sandbur, Coast sandbur Cenchrus spinifex Halogeton or clustered barilla salt Halogeton glomeratus Medusahead Taeniatherum caput-medusea subsp. caputmedusae Plantains Plantago spp. Poverty weed Iva axillaris Puncturevine Tribulus terrestris St. Johnswort, Klamathweed Hypericum perforatum Dalmation toadflax Linaria dalmatica Yellow toadflax Linaria vulgaris Western ragweed, Perennial ragweed Ambrosia psilostachya Wild mustard Sinapis arvensis subsp. arvensis Wild oat Avena fatua Gromwell (in small grain) Buglossoides arvensis Bedstraw Galium spp. (in alfalfa only) Black mustard Brassica nigra Brown mustard Brassica juncea (in rapeseed or canola only) Wild radish Raphanus raphanistrum Dyers woad Isatis tinctoria
english or
common name
botanical or
scientific name
Blackgrass or slender foxtail
Alopecurus myosuroides
Blue lettuce
Lactuca tatarica
Docks and sorrel
Rumex spp.
Field pennycress (fanweed)
Thlaspi arvense
Field sandbur, Coast sandbur
Cenchrus spinifex
Halogeton or clustered barilla salt
Halogeton glomeratus
Medusahead
Taeniatherum caput-medusea subsp. caputmedusae
Plantains
Plantago spp.
Poverty weed
Iva axillaris
Puncturevine
Tribulus terrestris
St. Johnswort, Klamathweed
Hypericum perforatum
Dalmation toadflax
Linaria dalmatica
Yellow toadflax
Linaria vulgaris
Western ragweed, Perennial ragweed
Ambrosia psilostachya
Wild mustard
Sinapis arvensis subsp. arvensis
Wild oat
Avena fatua
Gromwell (in small grain)
Buglossoides arvensis
Bedstraw
Galium spp. (in alfalfa only)
Black mustard
Brassica nigra
Brown mustard
Brassica juncea (in rapeseed or canola only)
Wild radish
Raphanus raphanistrum
Dyers woad
Isatis tinctoria