]> [author note: Herbarium and types: US; additional material at BH, DPU, DS, E, GH, K, MO, NY, RM, SDC, WELC, Y] [collector note: E, N & W USA, S Dakota, Nebraska with E. N. Wilcox: FH; A, BH, BPI, CUP, DAO, DS, E, GH, L, MICH, MO, NMW, RM, US, WELC, Y, District of Columbia: FH] Botany Williams, Thomas Albert Williams, Thomas Albert T. A. Williams Thomas Albert Williams 1865 1900