DRABA OLIGOSPERMA Hook. Fl. BOY. Am. I: 51. 1830.
This has been merged into D. glacialis, and yet has still more right to a specific rank. It has a very slender flowering and fruiting stem, much smaller leaves, and a pod that is not half the size and with only 2-4 seeds. It was collected growing with the preceding. Flodman, no. 488. Also collected by the author on a mountain near Lima in 1895, no. 2668.