Blooms: April-September
Habit: herb
Duration: perennial
Origin: Native
Conservation Status: Abundant; of no concern.
Distribution: Olympic Mountains and west slope of the Cascades in Washington; British Columbia south to California.
Habitat: Moist woods, low to moderate elevations.
Habit: herb
Duration: perennial
Origin: Native
Conservation Status: Abundant; of no concern.
Distribution: Olympic Mountains and west slope of the Cascades in Washington; British Columbia south to California.
Habitat: Moist woods, low to moderate elevations.
Species Description:
General: Acaulescent perennial from scaly rhizomes.
Leaves: Leaves trifoliate, on petioles 3-20 cm. long that are covered with soft, brown hairs, jointed to the stipules; leaflets obcordate, up to 4.5 cm. broad, drooping.
Flowers: Scapes 5-15 cm. tall, single-flowered, with 2 bracts near the flower; sepals 5, persistent; petals 5, 13-20 mm. long, white to pinkish, with reddish veining; stamens 10, the lower 2 mm. united in a tube, 5 filaments longer than the other 5; styles 5.
Fruits: Capsule 5-celled, 7-9 mm. long, ovoid.
General: Acaulescent perennial from scaly rhizomes.
Leaves: Leaves trifoliate, on petioles 3-20 cm. long that are covered with soft, brown hairs, jointed to the stipules; leaflets obcordate, up to 4.5 cm. broad, drooping.
Flowers: Scapes 5-15 cm. tall, single-flowered, with 2 bracts near the flower; sepals 5, persistent; petals 5, 13-20 mm. long, white to pinkish, with reddish veining; stamens 10, the lower 2 mm. united in a tube, 5 filaments longer than the other 5; styles 5.
Fruits: Capsule 5-celled, 7-9 mm. long, ovoid.
Accepted Name:
Oxalis oregana Nutt.Synonyms:
(none)
Treated in Flora of the PNW as:
Oxalis oregana
Additional Resources:
PNW Herbaria Specimens: View list of Oxalis oregana specimens in the Consortium of Pacific Northwest Herbaria database.
WTU Herbarium Specimens: View list of Oxalis oregana specimens in the WTU Herbarium database.
Washington Flora Checklist: Oxalis oregana treatment.
E-Flora BC: Oxalis oregana atlas page.
CalPhotos: Oxalis oregana images.
USDA Plants Database: Oxalis oregana.
Jim Riley
M. R. Smith
H. Tim Gladwin, 1996
H. Tim Gladwin, 1996
Bud Kovalchik
Tim Hagan, 2003
G. D. Carr, 2006
G. D. Carr, 2006
G. D. Carr, 2006
G. D. Carr, 2006
G. D. Carr, 2006
G. D. Carr, 2006
Rod Gilbert
Rod Gilbert
Clayton J. Antieau, 2006
Paul Slichter, 2009
Paul Slichter, 2009
Paul Slichter, 2009
Paul Slichter, 2009
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 WA Native Plant Society |
