Trifolium cyathiferum Lindl.
cup clover
Fabaceae (Pea family)

Introduction to Vascular Plants


© Curtis Bjork     (Photo ID #15877)


E-Flora BC Static Map

Distribution of Trifolium cyathiferum
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Species Information

Annual herb from fibrous roots; stems erect to ascending, 10-40 cm tall, branching, glabrous.
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.
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.
Pods, oblong, glabrous, short-stalked; seeds 1 or 2.

SourceThe Illustrated Flora of British Columbia


If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Habitat and 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.

SourceThe Illustrated Flora of British Columbia