Aruncus dioicus var. acuminatus

(Rydberg) H. Hara

J. Jap. Bot. 30: 68. 1955.

EndemicIllustrated
Basionym: Aruncus acuminatus Rydberg in N. L. Britton et al., N. Amer. Fl. 22: 255. 1908
Treatment appears in FNA Volume 9. Treatment on page 424. Mentioned on page 423.

Leaf surfaces mostly glabrous. Styles 0.3–0.5 mm. Follicles slender, 2.5–5 mm. Seeds 1.8–2.5 mm. 2n = 18.


Phenology: Flowering early summer.
Habitat: Moist to wet ravines, rocky ledges, avalanche tracks, stream banks, forest edges and openings
Elevation: 0–4800 m

Distribution

V9 716-distribution-map.jpg

Alta., B.C., Yukon, Alaska, Calif., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.
T. Lawrence Mellichamp +
(Rydberg) H. Hara +
Aruncus acuminatus +
Alta. +, B.C. +, Yukon +, Alaska +, Calif. +, Oreg. +  and Wash. +
0–4800 m +
Moist to wet ravines, rocky ledges, avalanche tracks, stream banks, forest edges and openings +
Flowering early summer. +
J. Jap. Bot. +
Endemic +  and Illustrated +
Aruncus dioicus var. acuminatus +
Aruncus dioicus +
variety +