United States of America, Arizona, Yuma, Cabeza Prieta Wildlife Refuge, Tule Desert, W boundary of Pinacate Lava flow and Pinta Sands along Camino del Diablo.
7.5' Monument Bluff quad;
244 meters
800 FT
Lower Colorado River subdivision of Sonoran Desertscrub; in stabilized sand with associates Malacothrix glabra, Sphaeralcea coulteri, Erigonum inflatum, Schismus barbatus, Baileya pleniradiata, Chamaesaracha coronopus.
Flowers nocturnal, white lobed, lower tube red-purple internally; locally common ephemeral, widespread.
For additional information about this specimen, please contact: Jennifer Ackerfield, Head Curator of Biodiversity Collections (jennifer.ackerfield@botanicgardens.org)