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	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 incertus
Gromwell (only in	Buglossoides arvensis
small grain)
Halogeton	Halogeton glomeratus C.A. Mey.
Medusahead	Taeniatherum
	caput-medusae
Plantains	Plantago spp.
Poverty weed	Iva axillaris Pursh.
Puncturevine	Tribulus terrestris L.
St. Johnswort	Hypericum perforatum L.
Dalmation toadflax	Linaria dalmatica (L.) Mill.
Yellow toadflax	Linaria vulgaris Hill.
Western ragweed	Ambrosia psilostachya DC.
Wild mustard	Sinapis arvensis subsp.
	arvensis
Wild oat	Avena fatua L.
Wild radish	Raphanus raphanistrum

[Statutory Authority: Chapters 15.49, 17.24, and 34.05 RCW. 06-01-111, § 16-301-050, filed 12/21/05, effective 1/21/06. Statutory Authority: Chapters 15.49 and 34.05 RCW. 02-12-060, § 16-301-050, filed 5/30/02, effective 6/30/02. Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3) and chapter 17.24 RCW. 00-24-077, § 16-301-050, filed 12/4/00, effective 1/4/01.]