ERIGERON SUBCANESCENS.
Mplopappus cancsccns Hook. Fl. Bor. Am. 2: 2 I . 1834.
Erigeron canescens T. & G. Fl. N. Am. 2: Not Willd.
This was included in E. caespitosum Nutt. by Dr. Gray, but I believe it to be a fairly good species, differing by the more slender and erect stems, the longer and narrower leaves, finer pubescence, smaller heads and narrower bracts.
It was collected by Flodman in the Spanish Basin, July 22, 1896, no. 836.