familyFabaceae
subfamilyFabaceae subfam. Faboideae
genusTrifolium
speciesTrifolium plumosum
subspeciesTrifolium plumosum subsp. amplifolium
Trifolium plumosum subsp. amplifolium
Canad. J. Bot. 50: 1981. 1972.
Common names: Bigleaf clover
EndemicConservation concern
Basionym: Trifolium plumosum var. amplifolium J. S. Martin Bull. Torrey Bot. Club 73: 369. 1946
Treatment appears in FNA Volume 11.
Herbs 10–60 cm. Leaflet blades elliptic, oblong, or lanceolate-elliptic, 0.8–1.6 cm wide, those of basal leaves (0.8–)0.9–1.6 cm wide, apex acute.
Phenology: Flowering May–Jul.
Habitat: Dry, rocky hillsides, clay roadsides, fields, open pine forests.
Elevation: 500–1500 m.
Discussion
Subspecies amplifolium is restricted to Idaho, Lewis, Nez Perce, and Washington counties.
Selected References
None.
Lower Taxa
None.