Pachylophus psammophilus A. Nelson & Macbr.Idaho: 10 mi W of St. Anthony.
"This is evidently the type of Pachylophus psammophilus Nels. & Macbr.! Bot. Gaz. 61:32. 1916." C. L. Porter '46. Phenology: Flowering and Fruiting.
Lectotype: Pachylophus psammophilus A. Nelson & Macbr.. Published 1916. Bot. Gaz. 61: 32. 1916.Elmer D. Merrill 888, Jul 8, 1901
With E. N. Wilcox
RM, Accession: 32393, Barcode: RM0003084