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

Trifolium cyathiferum Lindl.
cup clover
Fabaceae (Pea family)

Introduction to Vascular Plants

© Curtis Bjork  Email the photographer   (Photo ID #15877)

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Distribution of Trifolium cyathiferum
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Species Information

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General:
Annual herb from fibrous roots; stems erect to ascending, 10-40 cm tall, branching, glabrous.
Leaves:
Alternate, palmately compound; leaflets 3, oblanceolate to egg-shaped, 5-25 mm long, finely bristle-toothed along the edges; stipules egg- to lance-shaped, somewhat papery, 1/4 to 1/2 the length of the leaflets, the free tips spiny-toothed.
Flowers:
Inflorescence a dense, globe-shaped, long-stalked, axillary head of 5 to 30 pea-like flowers, the heads cradled in a conspicuous, bowl-shaped, papery, shallowly lobed, finely bristle-toothed involucre; corollas white, cream or pinkish, 5-11 mm long; calyces about the same length as the corollas, glabrous, veined, the tube membranous, the teeth longer than the tube, bristle-like, all or the lower 3 irregularly branched.
Fruits:
Pods, oblong, glabrous, short-stalked; seeds 1 or 2.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Vernally wet seepage areas and mesic to moist open, often sandy sites in the lowland, steppe and lower montane zones; rare in S BC; S to ID and CA.

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.

Taxonomic and Nomenclatural Links

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General References