William R. Carr|Mary Lee Bartlett|Robert Fulginiti
26349
2007-09-17
2007-9-17
United States, Texas, Stonewall, S side of an E-W stretch of the Salt Fork of the Brazos River, 1.1 airmiles E of mouth of Croton Creek, on Mary Lee Bartlett property ca. 8 mi NW of Swenson. Seven Diamond L Canyon Quadrangle.
33.29508 -100.40136
Annual; stems +/- ascending; locally common in opening in mesquite-juniper shrubland on gravelly sandy clay on low bluff of Permian redbeds just above floodplain. Associates include Aristida sp., Artemisia ludoviciana, Bouteloua hirsuta, Cenchrus spinifex, Conyza canadensis, Dalea formosa, Digitaria cognata, Ephedra antisyphilitica, Heterotheca subaxillaris, Juniperus pinchotii, Liatris punctata, Opuntia leptocaulis, O. (Platyopuntia) sp., Prosopis glandulosa and Schizachyrium scoparium.