Strophostyles leiosperma Piper Dataset International Plant Names Index Rank SPECIES Published in Contr. U.S. Natl. Herb. xxii. 668 (1926). Classification kingdom Plantae family Leguminosae species Strophostyles leiosperma Name Homonyms Strophostyles leiosperma (Torr. & A.Gray) Piper, 1926 Strophostyles leiosperma Piper