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

Glehnia littoralis subsp. leiocarpa F. Schmidt ex Miq. (Mathias) Hultén
American glehnia (American silvertop)

Introduction to Vascular Plants

© Val George  Email the photographer   (Photo ID #66409)

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Distribution of Glehnia littoralis ssp. leiocarpa
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Species Information

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Perennial herb from a stout woody taproot; stemless or with short stems and strongly sheathing leaf stalks buried in the sand.
Basal leaves spreading, often prostrate, thick and firm, glabrous above, white woolly beneath, once or twice divided in 3's; leaflets broadly elliptic to egg-shaped, coarsely toothed.
Inflorescence of several compact clusters; stalks hairy, 1.5-5 cm long; flowers white, small.
Oblong egg-shaped to globose, 6-13 mm long, somewhat flattened, glabrous or hairy towards tip, with broadly corky-winged ribs. HERACLEUM 1. Plants 1.5-4.5 m tall; fruits obtuse basally H. mantegazzianum1. Plants 1-3 m tall; fruits narrowed basally H. maximum

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to mesic coastal dunes and sandy beaches in the lowland zone; infrequent on the Queen Charlotte Islands and Vancouver Island; amphiberingian, N to AK and S to N CA; E. Asia.

Source: The Illustrated Flora of British Columbia


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Cymopterus littoralis auct. non A. Gray
Glehnia leiocarpa Mathias
Glehnia littoralis var. leiocarpa (Mathias) Boivin

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References