Collected
10 May 1990.
Arizona, United States
Locality: Pinal Co., Hwy 89, ca. 8 mi. S of jct. with Park Link Drive.
Environment description: Gravelly soil of rolling hills. Semidesert grassland with Prosopis velutina, Condalia warnockii, Ephedra trifurca, Zinnia acerosa, Yucca elata, Opuntia spp., Ferocactus wislizenii, numerous herbacous plants.