United States, Texas, Gonzales, Along both sides of road to old railroad depot on Plum Creek Ranch, ca. 1.5-1.6 airmiles SSE of center of I-10 / US Rt. 183 interchange, ca. 0.8-0.9 airmiles E of confluence of Plum Creek and San Marcos River, at N29o37'49.7", W097o34'58.8". Harwood Quadr
29.63047 -97.583
Occasional in continuously grazed forb-dominated herbaceous vegetation in opening in post oak woodland on gentle to moderate slope underlain by Carrizo Sand. Associates include Acalypha radians, Aphanostephus skirrhobasis, Aristolochia erecta, Asclepias tuberosa, Carex muhlenbergii, Chamaecrista fasciculata, Chrysopsis pilosa, Cnidoscolus texanus, Croptilon sp., Croton capitatus, C. glandulosus, Dalea obovata, Diodia teres, Eragrostis secundiflora, Froelichia gracilis and a broad-leaved congener, Gaillardia aestivalis, G. amblyodon, Galactia canescens, Helianthus cf. debilis, Indigofera suffruticosa, Matelea cynanchoides, Mollugo verticillata, Monarda viridissima, Paronychia drummondii, Paspalum setaceum, Phyllanthus abnormis, Polypremum procumbens, Portulaca umbraticola, Sclerocarpus uniserialis, Stillingia sylvatica, Tephrosia lindheimeri, Zornia bracteata.