Dalea leucostachys A. Gray Dalea leucostachys A. Gray, Mem. Amer. Acad. Arts 4(1): 32. 1849 sec. Rzedowski & al. 2016≡Parosela leucostachys Rose, Contr. U.S. Natl. Herb. 10: 104. 1906 syn. sec. ???