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

Potentilla arguta subsp. convallaria Pursh (Rydb.) D.D. Keck
white cinquefoil (cream cinquefoil)
Rosaceae (Rose family)

Introduction to Vascular Plants

© Ian Cumming  Email the photographer   (Photo ID #5224)

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Distribution of Potentilla arguta subsp. convallaria
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Species Information

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General:
Perennial herb from a short rhizome and branched stem-base; stems several, erect, 30-100 cm tall, strongly glandular-hairy.
Leaves:
Basal leaves several, long-stalked, pinnately compound; leaflets 5 to 9, mostly egg-shaped, 1-5 cm long, coarsely double-toothed, greenish and usually bothglandular-hairy and coarse-hairy but sometimes nearly smooth on both surfaces; stem leaves alternate, few, reduced upward.
Flowers:
Inflorescence a compact, narrow, nearly flat-topped, terminal cluster of several to many stalked flowers; corollas pale yellow to cream or whitish, bowl-shaped, the petals 5, oblong-egg-shaped, 5-9 mm long; calyces glandular, 5-lobed, the lobes lance-egg-shaped, 4-8 mm long, alternating with 5 shorter, narrower bractlets; ovaries superior, the styles spindle-shaped and glandular-roughened near the middle; stamens usually 25.
Fruits:
Achenes, numerous, lopsided-egg-shaped, 1-1.5 mm long, smooth.
Notes:
The subspecies arguta, with brown-hairy stems, is found east of the Rocky Mountains and may be expected in NE BC.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry to moist meadows, thickets, rocky grassy slopes and open forests in the steppe and montane zones; frequent throughout BC, except along the coast; N to AK, E to PQ and S to OR, AZ, NM, OK and NJ.

Source: The Illustrated Flora of British Columbia

Climate

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

Potentilla arguta var. convallaria (Rydb.) T. Wolf
Potentilla convallaria Rydb.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References