familyFabaceae
subfamilyFabaceae subfam. Faboideae
genusTrifolium
speciesTrifolium eriocephalum
subspeciesTrifolium eriocephalum subsp. martinii
Trifolium eriocephalum subsp. martinii
Canad. J. Bot. 49: 401. 1971.
Herbs densely villous; roots fusiform-tuberous, not rhizomelike, except by burial of the crown. Leaflet blades of basal leaves obovate, surfaces glabrous adaxially, of median leaves narrowly lanceolate or linear, surfaces densely villous adaxially, apex rounded to retuse. Inflorescences scarcely overtopping distal leaves, 1 cm wide. Flowers: calyx lobes usually purple, contorted, abaxial lobes longer, lateral lobes 1–1.5 times tube; corolla white, cream, or purple; ovules 3 or 4.
Phenology: Flowering May–Jul.
Habitat: Open pine forests, riverbanks, clearings, wet meadows.
Elevation: 1200–2100 m.
Discussion
Subspecies martinii occurs in west-central Idaho and northeastern Oregon.
Selected References
None.
Lower Taxa
None.