Thysanocarpus curvipes subsp. amplectens

A brassicid that can be very abundant on relatively moist rocky slopes in southern Arizona and adjacent New Mexico. This genus and Athysanus are the only brassicids with single-seeded fruits. Subspecies amplectens has glabrous stems & radiate fruits.

Plant habit near Signal Peak in the Gila Bend Mountains, Arizona, 9 Mar 2008.

Immature fruit near Signal Peak, 9 Mar 2008.

Immature fruit on the Table Top Trail, Sonoran Desert National Monument, Maricopa County, Arizona, 10 Mar 2008.

Cauline leaf on the Table Top Trail, 10 Mar 2008.

Plant habit on the Table Top Trail, 10 Mar 2008.

Plant habit in King Canyon, in the Tucson Mountains, Pima County, Arizona, 4 Feb 2005. This plant was in the shade, plants in the sun generally have much smaller leaves and many more flowers.

Flowers in King Canyon, 4 Feb 2005.

A fruit in King Canyon, 4 Feb 2005.