WAC 16-301-050. Restricted noxious weed seeds

Restricted (secondary) noxious weed seeds are the seeds of weeds which are objectionable in fields, lawns, and gardens of this state, but which can be controlled by cultural or chemical practices. Seed is deemed mislabeled if it consists of or contains any of the restricted noxious weed seeds listed below in excess of the number declared on the label. For the purpose of seed certification, see WAC 16-302-105 for the list of objectionable weeds. ENGLISH OR COMMON NAME BOTANICAL OR SCIENTIFIC NAME Blackgrass or slender foxtail Alopecurus myosuroides Black mustard Brassica nigra Blue lettuce Lactuca tatarica subsp. pulchella Docks and Sorrel Rumex spp. Dodder Cuscuta spp. Dyers woad Isatis tinctoria Field pennycress Thlaspi arvense (fanweed) Field sandbur Cenchrus spinifex Gromwell (only in Buglossoides arvensis small grain) Halogeton or clustered barilla salt Halogeton glomeratus Medusahead Taeniatherum caput-medusae Plantains Plantago spp. Poverty weed Iva axillaris Pursh Puncturevine Tribulus terrestris St. Johnswort Hypericum perforatum Dalmation toadflax Linaria dalmatica Yellow toadflax Linaria vulgaris Western ragweed Ambrosia psilostachya Wild mustard Sinapis arvensis subsp. arvensis Wild oat Avena fatua Wild radish Raphanus raphanistrum ENGLISH OR COMMON NAME BOTANICAL OR SCIENTIFIC NAME Blackgrass or slender foxtail Alopecurus myosuroides Black mustard Brassica nigra Blue lettuce Lactuca tatarica subsp. pulchella Docks and Sorrel Rumex spp. Dodder Cuscuta spp. Dyers woad Isatis tinctoria Field pennycress Thlaspi arvense (fanweed) Field sandbur Cenchrus spinifex Gromwell (only in Buglossoides arvensis small grain) Halogeton or clustered barilla salt Halogeton glomeratus Medusahead Taeniatherum caput-medusae Plantains Plantago spp. Poverty weed Iva axillaris Pursh Puncturevine Tribulus terrestris St. Johnswort Hypericum perforatum Dalmation toadflax Linaria dalmatica Yellow toadflax Linaria vulgaris Western ragweed Ambrosia psilostachya Wild mustard Sinapis arvensis subsp. arvensis Wild oat Avena fatua Wild radish Raphanus raphanistrum