Page author: David Giblin
Geranium oreganum
sticky geranium, western geranium
WTU specimens
Other herbaria

Distribution: West of the Cascades in southwestern Washington; south to northern California.

Habitat: Meadows and woodlands.

Flowers: May-July

Origin: Native

Conservation Status: Presumed Extirpated in Washington (WANHP)

Description:
General:

Perennial, the stems 4-8 dm. tall, covered with stalked glands above.

Leaves:

Leaves long-petiolate, the blades with stiff hairs on both surfaces, 6-14 cm. broad, divided palmately nearly to the base into 5-7 wedge-shaped, lobed segments.

Flowers:

Flowers showy, few, the long peduncles with leaf-like bracts; sepals 5, 9-12 mm. long with bristle-tips 2-3 mm. long; petals 5, 18-24 mm. long, reddish-purple; stamens 10, the filaments with hairs near the base; stylar column 3.5-4.5 cm. long, stigmas 2-2.5 mm. long.

Fruits:

Carpels covered with stiff hairs.

Accepted Name:
Geranium oreganum Howell
Publication: A Flora of Northwest America 1: 106-107. 1897.

Synonyms & Misapplications:
Geranium albiflorum Hook. var. incisum Torr. & Gray [KZ99]
Geranium incisum Nutt.
Additional Resources:

PNW Herbaria: Specimen records of Geranium oreganum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Geranium oreganum checklist entry.

E-Flora BC: Geranium oreganum atlas page.

CalPhotos: Geranium oreganum photos.

USDA Plants: Geranium oreganum information.

19 photographs:
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