E-Flora BC: Electronic Atlas of the Flora of British Columbia

Aruncus dioicus var. acuminatus (Walter) Fernald (Rydb.) Rydb. ex H. Hara
goatsbeard
Rosaceae (Rose family)

Introduction to Vascular Plants

© Brian Klinkenberg  Email the photographer   (Photo ID #6787)

E-Flora BC Static Map
Distribution of Aruncus dioicus var. acuminatus
Click here to view the full interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.



General:
Robust perennial herb from stout short-creeping rhizome; stems several, erect to ascending, 1-2 m tall, smooth.
Leaves:
Alternate, 10-60 cm long, long-stalked, the lower leaves usually three times compound, the leaflets egg-shaped to narrowly oblong, sharply double-toothed and pointed, 3-15 cm long, the upper leaves smaller and less compounded; green and usually smooth above, hairy and paler below.
Flowers:
Inflorescence a large, elongated, terminal panicle with numerous spike-like branches of tiny, short-stalked flowers; male and female flowers on separate plants; corollas white, the petals 5, oblong to egg-shaped, about 1 mm long; calyces 5-toothed, the teeth shorter than the petals; ovaries superior; pistils 3 (4 or 5) in female flowers; stamens 15 to 30 in male flowers.
Fruits:
Follicles, bent back, more or less cylindric, somewhat leathery, straw-coloured, smooth, about 3 mm long; seeds 2 to 4 per follicle, about 2 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to wet ravines, rocky ledges, avalanche tracks, streambanks, forest edges and openings in the low land and montane zones; common in BC south of 55degreeN, rare northward; circumboreal, N to AK and S to CA; Eurasia.

Source: The Illustrated Flora of British Columbia

Additional Notes

A strong but graceful plant with tall, creamy plumes that liven up any woodland garden with height and presence. Quite long-flowering in moist spots.

Note Author: Gary Lewis, Phoenix Perennials

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References