- IPNI Life Sciences Identifier (LSID)
- Transactions of the American Philosophical Society Held at Philadelphia for Promoting useful Knowledge. Philadelphia
- ser. 2, 7: 293
- Date of Publication
- Oct-Dec 1840
- Family as entered in IPNI
- Collector Team
- Type Herbaria
- holotype BM
- Distribution Of Types
- Lewis [Snake] River, Rcky. Mts.
Cronquist [Mem. N. Y. Bot. Gard. 64: 129. 1990] notes ambiguity with placement of the type collection, and recommends that the name remain as a nomen dubium.