familyFabaceae
subfamilyFabaceae subfam. Faboideae
genusTrifolium
speciesTrifolium longipes
subspeciesTrifolium longipes subsp. atrorubens
Trifolium longipes subsp. atrorubens
Canad. J. Bot. 47: 108. 1969.
Common names: Reddish longstalk clover
Endemic
Basionym: Trifolium rusbyi var. atrorubens Greene Erythea 4: 66. 1896
Synonyms: T. atrorubens (Greene) House T. longipes var. atrorubens (Greene) Jepson
Treatment appears in FNA Volume 11.
Herbs 15–40 cm; not rhizomatous; roots thickened, often fusiform. Inflorescences 15–40-flowered, subglobose, 1.5–2 cm diam.; peduncles densely pilose distally. Pedicels erect or proximalmost horizontal or slightly reflexed in fruit, stout, to 1 mm. Flowers 11–13 mm; calyx densely pilose; corolla lavender or purple, sometimes tips darker, banner and wing apices acute. 2n = 48.
Phenology: Flowering May–Jul.
Habitat: Meadows.
Elevation: 1100–3000 m.
Discussion
Subspecies atrorubens is known from Fresno, Riverside, San Bernardino, and Tulare counties.
Selected References
None.
Lower Taxa
None.