Dimorphocarpa wislizeni (Engelm.) Rollins

A common brassicid with distinctive fruits. Rollins recognizes a separate species, Dimorphocarpa candicans, in New Mexico as well, but I am unable to find any differences between the two.

A flowering stem on the east side of the Rio Grande near Las Cruces, 8/29/04.

A fruit on the east side of the Rio Grande near Las Cruces, 8/29/04.

Plant habit at Black Mountain, south of Las Cruces, 3 Feb 2007.

Closer view of flowers on the east side of the Rio Grande near Las Cruces, 8/29/04.

Flowering stems on the east side of the Rio Grande near Las Cruces, 8/29/0.

Young rosettes at Black Mountain, south of Las Cruces, 3 Feb 2007.

Old fruiting stem at the Jornada del Muerto LTER, 15 Dec 2007.

Crispy plant, Jornada del Muerto, 15 Dec 2007.

Plant habit at Tortugas Mountain, Doña Ana County, New Mexico, 28 Feb 2010.

Flowers at Tortugas Mountain, 28 Feb 2010.