Astragalus nuttallianus var. imperfectus (Rydb.) Barneby
Fabaceae
Loraine Yeatts
5903
2010-03-21
3/21/2010
Dick Yeatts
United States of America, Arizona, La Paz, AZ Uplands division of Sonoran Desert, Buckskin Mts., Bill Williams R. ca. 8500m NE of Swansea townsite; substrate of Miocene Swanea Plutonic Suite (incl. gabbro, diorite, quartz diorite, granite); 1000 ft.
12 S 244532E 3790079N
Collector corrected or updated georeference in 2017. Used software BaseCamp (Garmin) to either convert NAD27 to decimal latitude and longitude or to add latitude and longitude when no prior georeference existed.
Gravelly soil stabilized by desert pavement on steep S. facing hillside and saddle; with Camissonia brevipes, Plagiobothrys jonesii, Cryptantha maritima, Orthocarpus purpurascens, Phacelia crenulata, Lotus saluginosus var. brevivexillus, L. tomentellus, Plantago ovata; flowers blue-purple; pod ascending, unilocular, triqueous, sulcate ventrally; inconspicuous but common locally and widespread.
For additional information about this specimen, please contact: Jennifer Ackerfield, Head Curator of Biodiversity Collections (jennifer.ackerfield@botanicgardens.org)