Euphorbia segetalis L.

Washington: Thurston County: Old Military Road, 1 mile east-northeast of Tenino. Elev. 278 ft.
46° 51.8' N, 122° 49.6' W; T16N R1W S20
In gravel paths in garden. Annual weed, full sun, leaves glaucous blue-green, glands yellow, concave, horned; fruit granular; seeds reticulate pitted; occasional escape; with Stellaria media, Senecio vulgaris. Phenology: Fruits.

Peter F. Zika 22393, Sep 23, 2005
WTU, Accession: 364247