Distribution: West of the Cascades in Washington near Seattle and Bellingham; British Columbia south to California; Gulf Coast and northeastern U.S.
Habitat: Weed in disturbed areas.
Flowers: April-June
Origin: Introduced
Conservation Status: Not of concern
Annual herb with stems square in cross section and branching below.
Opposite, sessile or short petiolate.
Pink, small; in axillary clusters along stem.
4 small nutlets.
This species is not listed for Washington by most sources. It has recently been found fairly well established in several locations in the Puget Trough and should be expected to turn up again.
Publication: Sp. Pl. (ed. 2) 2: 814. 1763.
PNW Herbaria: Specimen records of Stachys arvensis in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Stachys arvensis checklist entry.
E-Flora BC: Stachys arvensis atlas page.
CalPhotos: Stachys arvensis photos.
USDA Plants: Stachys arvensis information.
