familyFabaceae
subfamilyFabaceae subfam. Faboideae
genusTrifolium
speciesTrifolium longipes
subspeciesTrifolium longipes subsp. shastense
Trifolium longipes subsp. shastense
Canad. J. Bot. 47: 104. 1969.
Common names: Shasta longstalk clover
Endemic
Basionym: Trifolium shastense House Bot. Gaz. 41: 336, fig. 4. 1906
Synonyms: T. longipes var. shastense (House) Jepson T. rusbyi subsp. shastense (House) D. Heller & Zohary
Treatment appears in FNA Volume 11.
Herbs 10–17 cm; rhizomatous; roots usually not thickened, if so, then crown of rhizomes above thickened portion. Inflorescences 18–22-flowered, globose, 2.2–2.5 cm diam. Pedicels (at least proximal, usually all) strongly reflexed in fruit, proximal more strongly reflexed than distal, stout, to 1 mm. Flowers 10–13 mm; calyx sparsely hairy; corolla purple, sometimes tips white, banner apex acute or acuminate.
Phenology: Flowering May–Jun.
Habitat: Open gravelly places to upper limit of Pinus monticola.
Elevation: 1200–2800 m.
Discussion
Subspecies shastense occurs in Shasta, Siskiyou, and Trinity counties.
Selected References
None.
Lower Taxa
None.