Rosa acicularis Lindl. × Rosa gymnocarpa Nutt. (or × R. woodsii?)
Annotated by B. Ertter, 2015. Remarks: Determined at the University of Washington.

Montana: Missoula County: At west end of Holland Lake, about 80 miles northeast of Missoula. Elev. 4300 ft.
T20N R16W S35
Datum: NAD 27. Uncertainty: 805 meters. Coordinate Source: TRS2LL.
In mixed coniferous woods. Rhizomatous low shrubs mostly 3-6 decimeters tall. Plants more or less divisible into two types, the more common type with relatively large leaflets, glabrous pedicels, and large pink flowers that often have supernumerary petals, the less common type with smaller leaflets, stipitate-glandular pedicels, and smaller, very deep rose flowers mostly without supernumerary petals; but other combinations of these characters occur occasionally. [Mixed collection. Also on sheet: Rosa acicularis. Filed under Rosa acicularis.] Phenology: Flowers.

Arthur Cronquist 7878, Jul 4, 1955
WTU, Accession: 161540B, Barcode: WTU-V-009376