Trifolium longipes subsp. hansenii

(Greene) J. M. Gillett

Canad. J. Bot. 47: 109. 1969.

Common names: Hansen’s clover
Endemic
Basionym: Trifolium hansenii Greene Erythea 3: 17. 1895
Treatment appears in FNA Volume 11.

Herbs 15–40 cm; rhizomatous; roots not fusiform, sometimes thickened. Leaflet blades lan­ceolate, elliptic to oblong, or ovate. Inflorescences 15–25-flowered, subglobose, 1.5–3 cm diam. Pedicels erect or prox­imalmost horizontal or slightly reflexed in fruit, stout, to 1 mm. Flowers 13–15 mm; calyx sparsely hairy, lobes lax, usually only slightly longer than tubes, tube veins not prominent; corolla white, lavender, or pink, banner and wing apices acute or acuminate. 2n = 48.


Phenology: Flowering Jun–Aug.
Habitat: Moist meadows, pine forests.
Elevation: 300–3200 m.

Discussion

Subspecies hansenii ranges from Tulare County, California, northward through eastern and northern California to southern, central, and northeastern Oregon, with scattered populations in Nevada, from Eureka, Mineral, Nye, Ormsby, Storey, and Washoe counties.

Selected References

None.

Lower Taxa

None.
Michael A. Vincent +  and John M. Gillett† +
(Greene) J. M. Gillett +
Trifolium hansenii +
Hansen’s clover +
Calif. +, Nev. +  and Oreg. +
300–3200 m. +
Moist meadows, pine forests. +
Flowering Jun–Aug. +
Canad. J. Bot. +
Amoria +, Chrysaspis +  and Lupinaster +
Trifolium longipes subsp. hansenii +
Trifolium longipes +
subspecies +