Euclidium
euclidium
1 species
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Euclidium syriacumeuclidium, Syrian mustard
Distribution: In scattered locations east of the Cascades crest in Washington; Washington south to California, east to Idaho, Wyoming, Utah, and Colorado; also in Massachusetts.
Habitat: Weed of roadsides and ditch banks.
Origin: Introduced from Eurasia
Flowers: May-June