Trifolium longipes subsp. pygmaeum

(A. Gray) J. M. Gillett

Canad. J. Bot. 47: 102. 1969.

Common names: Pygmy clover
Endemic
Basionym: Trifolium longipes var. pygmaeum A. Gray in J. C. Ives Rep. Colorado R. 4: 9. 1861
Synonyms: T. brachypus (S. Watson) Blankinship T. confusum Rydberg T. rusbyi Greene
Treatment appears in FNA Volume 11.

Herbs 5–30 cm; not rhizo­matous; roots thickened, often fusiform, with a crown of buried stems. Inflorescences 10–25-flowered, globose, 1.5–2.5 cm diam. Pedicels (at least proximal, usually all) strongly reflexed in fruit, slender, 1.5–2 mm. Flowers 11–12 mm; calyx curly-pubescent throughout or at sinuses; corolla purple or pink, banner apex acute or acuminate. 2n = 16.


Phenology: Flowering Apr–Aug.
Habitat: Ponderosa pine or Engelmann spruce forests, aspen groves, open meadows.
Elevation: 700–3500 m.

Distribution

Ariz., Colo., N.Mex., Utah.

Discussion

Subspecies pygmaeum occurs in northeastern Arizona, southwestern and north-central Colorado, northwestern New Mexico, and southern Utah.

Selected References

None.

Lower Taxa

None.
Michael A. Vincent +  and John M. Gillett† +
(A. Gray) J. M. Gillett +
Trifolium longipes var. pygmaeum +
Pygmy clover +
Ariz. +, Colo. +, N.Mex. +  and Utah. +
700–3500 m. +
Ponderosa pine or Engelmann spruce forests, aspen groves, open meadows. +
Flowering Apr–Aug. +
Canad. J. Bot. +
T. brachypus +, T. confusum +  and T. rusbyi +
Trifolium longipes subsp. pygmaeum +
Trifolium longipes +
subspecies +