Family = Brassicaceae, Genus = Brassica, Species = rapa, including synonyms,
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|Brassica rapa (field mustard, wild turnip, common mustard)
(= Brassica campestris in Flora of the Pacific Northwest)
Glabrous, glaucous annual from a taproot, the simple to freely-branched stem 2-10 dm. tall.
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout North America.
Habitat: Distrubed areas such as roadsides, fields, and waste lots.
Origin: Introduced from Europe
WA Native Plant Society