Northern Prairie Wildlife Research Center
Wyoming Rare Plant Field Guide
- Similar Species: P condensata has shorter leaves in a flattened rosette and narrow fruit (0.5- 1 cm wide). P. eburniflora has round-tipped, flattened basal leaves, whitish flowers, and narrower fruits with spreading hairs.
P. integrifolia has erect stems exceeding the basal rosette by 5 cm or more.
- Flowering/Fruiting Period: May-July/June-July. Mature fruits required for positive identification.
- Distribution: Endemic to the Rock Creek Ridge area, Wyoming (Lincoln Co.).
- Habitat: Dry, calcareous-shaley soils on slopes and ridges with mountain mahogany and rabbitbrush. Elev. 6500-7200 ft.
- References: Dorn 1992 b; Lichvar 1982, 1983 a; Marriott 1988 a; Weynand and Amidon 1990.