Calamagrostis crispifolius; A lower portion of plant, showing basal tuft of curled leaves B lígular area C upper portion of plant showing inflorescence and flag leaf blade D primary branch of the inflorescence E lower glume, dorsal view F upper glume, dorsal view G spikelet, with floret already fallen, lateral view H spikelet, with floret, lateral view I lemma, dorsal view J lemma, lateral view K stylar branch and stigma L palea ventral view, showing the ovary, stamens and lodicules M ovary and lodicules, ventral view N immature caryopsis, dorsal view showing embryo; drawn by Alice R. Tangerini from the isotype, R. Romero Castañeda 7141 (US).