Xanthisma gracile (Nutt.) D.R.Morgan & R.L.Hartm.

Washington: Whitman: Pullman.
46.73139° N, 117.17861° W,
Grown outside. 1:1 mixture of sand, peat with Vigoro, soluble fertilizer from seed (S.M.G 1503) collected in Arizona in 1960. Databased for SE Wash. Flora. Https://intermountainbiota.org/portal/collections/individual/index.php?occid=30867083. Phenology: flowering.

Marion Ownbey s.n., 1961-10-5
WS, Catalog: 363185