Lepidium lasiocarpum subsp. lasiocarpum

Synonyms: Lepidium georginum Rydberg Lepidium lasiocarpum subsp. georginum Lepidium lasiocarpum var. georginum (Rydberg) C. L. Hitchcock Lepidium lasiocarpum var. rosulatum C. L. Hitchcock
Treatment appears in FNA Volume 7. Treatment on page 585. Mentioned on page 584.
Revision as of 00:02, 28 May 2020 by imported>Volume Importer

Fruiting pedicels 0.2–0.4(–0.6) mm wide, usually less than 3 times as wide as thick. Nectar glands toothlike, 0.1–0.2 mm. Fruit valves hirsute or minutely fringed on margin, trichomes not pustular-based. 2n = 32.


Phenology: Flowering Mar–Jun.
Habitat: Pinyon-juniper woodlands, sagebrush and other shrub communities, open deserts, dry washes and flats, waste places, streambeds, roadsides, sandy areas, rock slides, stony slopes
Elevation: -50-2700 m

Distribution

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Ariz., Calif., Colo., Nev., N.Mex., Tex., Utah, Mexico (Baja California, Coahuila, Nuevo León, San Luis Potosí, Sinaloa, Sonora).

Discussion

In subsp. lasiocarpum there is considerable variation in the density and location of trichomes on the fruit valve; in some populations (e.g., Rollins & Munz 6741, GH), the trichomes are present over the entire valve; in others they are restricted as a fringe along part of the fruit margin.

Selected References

None.

Lower Taxa

None.
Ihsan A. Al-Shehbaz +  and John F. Gaskin +
Nuttall +
Ariz. +, Calif. +, Colo. +, Nev. +, N.Mex. +, Tex. +, Utah +, Mexico (Baja California +, Coahuila +, Nuevo León +, San Luis Potosí +, Sinaloa +  and Sonora). +
-50-2700 m +
Pinyon-juniper woodlands, sagebrush and other shrub communities, open deserts, dry washes and flats, waste places, streambeds, roadsides, sandy areas, rock slides, stony slopes +
Flowering Mar–Jun. +
in J. Torrey and A. Gray, Fl. N. Amer. +
Weedy +  and Illustrated +
Lepidium georginum +, Lepidium lasiocarpum subsp. georginum +, Lepidium lasiocarpum var. georginum +  and Lepidium lasiocarpum var. rosulatum +
Lepidium lasiocarpum subsp. lasiocarpum +
Lepidium lasiocarpum +
subspecies +