PDFWAC 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 | 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 | Hypericum perforatum |
Dalmation toadflax | Linaria dalmatica |
Yellow toadflax | Linaria vulgaris |
Western 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 |
[Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3), and chapter 34.05 RCW. WSR 14-20-050, § 16-302-105, filed 9/25/14, effective 10/26/14. Statutory Authority: Chapter 15.49 RCW. WSR 09-16-006, § 16-302-105, filed 7/22/09, effective 8/22/09. Statutory Authority: Chapters 15.49, 17.24, and 34.05 RCW. WSR 06-01-111, § 16-302-105, filed 12/21/05, effective 1/21/06. Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3) and chapter 17.24 RCW. WSR 00-24-077, § 16-302-105, filed 12/4/00, effective 1/4/01.]