Lepidium lasiocarpum subsp. wrightii

(A. Gray) Thellung

Mitt. Bot. Mus. Univ. Zürich 28: 266. 1906.

Basionym: Lepidium wrightii A. Gray Smithsonian Contr. Knowl. 5(6): 15. 1853
Synonyms: Lepidium lasiocarpum var. rotundum C. L. Hitchcock Lepidium lasiocarpum var. wrightii (A. Gray) C. L. Hitchcock Lepidium nelsonii
Treatment appears in FNA Volume 7. Treatment on page 585. Mentioned on page 584.

Fruiting pedicels (0.4–)0.5–0.7 mm wide, often more than 3 times as wide as thick. Nectar glands subulate, 0.3–0.5mm. Fruit valves hispid, trichomes pustular-based. 2n = 32.


Phenology: Flowering Feb–May.
Habitat: Roadsides, rocky draws, dry washes, loose sand, stony or gravelly areas, clay flats
Elevation: 200-1100 m

Distribution

V7 946-distribution-map.gif

Ariz., N.Mex., Tex., Mexico (Coahuila, Tamaulipas).

Discussion

I. A. Al-Shehbaz (1986b) reported subsp. wrightii from Louisiana, but we have seen no additional material from that state, where it was likely introduced.

Selected References

None.

Lower Taxa

None.
Ihsan A. Al-Shehbaz +  and John F. Gaskin +
(A. Gray) Thellung +
Lepidium wrightii +
Ariz. +, N.Mex. +, Tex. +, Mexico (Coahuila +  and Tamaulipas). +
200-1100 m +
Roadsides, rocky draws, dry washes, loose sand, stony or gravelly areas, clay flats +
Flowering Feb–May. +
Mitt. Bot. Mus. Univ. Zürich +
Weedy +  and Illustrated +
Lepidium lasiocarpum var. rotundum +, Lepidium lasiocarpum var. wrightii +  and Lepidium nelsonii +
Lepidium lasiocarpum subsp. wrightii +
Lepidium lasiocarpum +
subspecies +