Page author: Don Knoke
Geum aleppicum
yellow avens
WTU specimens
Other herbaria

Distribution: Occasional east of the Cascades, British Columbia to California, more common east of the Rockies in southern Canada.

Habitat: Along streams and in marshy or damp woods.

Flowers: June - July

Origin: Native

Conservation Status: Not of concern

Description:
General:

Perennial herb from a short rhizome, the several stems up to 1 m. tall, puberulent below and becoming short and stiff-hairy above, the hairs spreading.

Leaves:

Basal leaves several, long-petiolate, the blades oblong-obovate in outline, up to 15 cm. long, lyrate-pinnatifid, the main segments 5-9, obovate with a wedge-shaped base, strongly cleft and double-toothed, the terminal segment lobed over half its length; cauline leaves several, the lower ones pinnatifid, with large, leaf-like stipules, the upper only 3-lobed.

Flowers:

Flowers several in a leafy-bracteate, unsymmetrical cyme; tubular portion of the calyx saucer-shaped, 3-4 mm. long; calyx lobes 5, reflexed, 5-8 mm. long; petals yellow, spreading, slightly longer than the sepals; stamens 60-100; pistils numerous; styles abruptly bent above mid-length, of 2 distinct segments, the lower segment glabrous, brownish, 4.5 mm. long, persistent and hooked, the upper segment hairy, 1.5 mm. long, deciduous.

Fruits:

Achenes flattened, elliptic, 3-4 mm. long

Accepted Name:
Geum aleppicum Jacq.
Publication: Icon. Pl. Rar. 1: 10, pl. 93. 1786.

Synonyms & Misapplications:
Geum aleppicum Jacq. ssp. strictum (Aiton) R.T. Clausen
Geum aleppicum Jacq. var. strictum (Aiton) Fernald
Geum strictum Aiton
Geum strictum Aiton var. decurrens (Rydb.) Kearney & Peebles
Additional Resources:

PNW Herbaria: Specimen records of Geum aleppicum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Geum aleppicum checklist entry.

E-Flora BC: Geum aleppicum atlas page.

CalPhotos: Geum aleppicum photos.

USDA Plants: Geum aleppicum information.

7 photographs:
Group by