Rumex acetosa

Distribution: Introduced in scattered locations in North America; occasional in British Columbia, western Washington and Oregon, and northcentral Montana.

Habitat: Disturbed soil and wasteland.

Flowers: April - July

Origin: Introduced

Conservation Status: Not of concern


Usually glabrous, dioecious perennial from a simple or branched crown, the erect, 1-several stems 4-10 dm. tall, simple below the inflorescence.


Leaves with sheathing stipules and the lower with a slender petiole, becoming sessile above; leave blades oblong to oblong-lanceolate, up to 10 cm. long, at least the lower saggitate-based.


Inflorescence a large, leafless, reddish panicle; pedicels very slender, about the same length as the perianth, jointed at mid-length; flowers imperfect; outer 3 perianth segments 1.5 mm. long, becoming strongly reflexed; inner 3 segments 3.5 mm. long, erect, with a very small lump at the base; styles 3.


Achene 2.5 mm. long, smooth.

Accepted Name:
Rumex acetosa L.
Publication: Sp. Pl. 1: 337. 1753. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Rumex acetosa in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Rumex acetosa checklist entry.

E-Flora BC: Rumex acetosa atlas page.

CalPhotos: Rumex acetosa photos.

USDA Plants: Rumex acetosa information.

10 photographs:
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