Fl. Amer. Sept.1: 137. 1813 ,
Phenology: Flowering early-mid summer.
Habitat: Open, grassy meadows, sandy or gravelly open soils, often in disturbed areas
Elevation: 300-1700 m
Androsace occidentalis is widespread across the central and western United States, extending into southern Canada. It is often confused with A. septentrionalis, with which it overlaps geographically somewhat in the western portion of its range. Androsace occidentalis is generally restricted to lower elevations and is distinguished by its broad involucral bracts and cup-shaped calyx. In A. septentrionalis, the involucral bracts are narrow and the calyx V-shaped at the base, a shape enhanced by the more prominent calyx ridges. Hybridization between A. occidentalis and A. septentrionalis has not been documented; some specimens from intermediate elevations in the Four Corners area show intermediate bract morphology and slight glandular pubescence, a characteristic of some southwestern populations of A. septentrionalis.
|Author||Sylvia Kelso +|
|Common name||Western rock jasmine +|
|Elevation||300-1700 m +|
|Habitat||Open, grassy meadows, sandy or gravelly open soils, often in disturbed areas +|
|Illustrator||Yevonn Wilson-Ramsey +|
|Phenology||Flowering early-mid summer. +|
|Synonym||Androsace arizonica +, Androsace occidentalis arizonica +, Androsace occidentalis simplex + and Androsace platysepala +|
|Taxon name||Androsace occidentalis +|
|Taxon parent||Androsace +|
|Taxon rank||species +|
|Volume||Volume 8 +|