Collected
09 September 2008.
United States
Environment description: Creosotebush rolling uplands
Number of plants sampled: 2500
Comment: Collectors: Trager, N., Weckesser, W. Assoc. sp.:Flourensia cernua:Larrea tridentata:Gutierrezia sarothrae:Bahia absinthifolia:Zinnia acerosa:Parthenium incanum:Yucca baccata:Dasyochloa pulchella