Home Brassicaceae
Name Search
Species List
Dimorphocarpa pinnatifida Rollins Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenAfrican Plants, Senckenberg Photo GallerySearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font

Published In: Publications of the Bussey Institution, Harvard University 1979: 28–29, map 1. 1979. (20 Mar 1979) (Publ. Bussey Inst. Harvard Univ.) Name publication detail

Project Name Data (Last Modified On 7/23/2009)

Export To PDF Export To Word

3. Dimorphocarpa pinnatifida Rollins, Publ. Bussey Inst. Harvard Univ. 1979: 28. 1979. TYPE: Mexico, Sonora, ca. 5 miles NE of Sierra del Rosario, Gran Desierto, ca. 150 m, 32º8´N, 114º0´W, 4 Mar 1972, H. T. Cross, L. A. May, and R. S. Felger 20429 (holotype, GH!; isotypes, ARIZ, SD).

Herbs, annual. Stems 2–9 dm, erect, branched at base and above. Basal leaves with petioles 0.5–2 cm; leaf blade linear to linear-lanceolate, (2–)3–6(–8) cm x (2–)3–5(–8) mm, pinnatifid, base attenuate; upper cauline leaves short-petiolate or subsessile, linear to narrowly lanceolate, pinnately lobed, base cuneate. Fruiting pedicels divaricate to slightly reflexed, (0.8–)1–1.7(–2.2) cm, pubescent all around, straight. Sepals oblong, 2–3 x 1–1.5 mm, pubescent outside; petals white, obovate, (3.5–)4–6.5 x 2–3.5 mm, attenuate to claw; claw 1–1.5 mm, expanded at base; filaments 2–3 mm, white; anthers oblong, 0.8–1.1 mm. Fruit halves orbicular, 5–6.5 x 6–7 mm, rounded at apex and base, not margined beyond the indurated part surrounding the seeds, pubescent; style 0.5–1 mm. Seeds brown, suborbicular, 2.5–3.5 x 2–3 mm. 2n = 18.

Flowering: Mar–Apr.

Habitat: sandy hills and flats, dunes.

Elevation: 100–800 m.

Distribution: Mexico (Sonora), United States (Arizona/Pima and Yuma counties).




© 2023 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110