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Montana Field Guide

Montana Field Guides

Western Rock-jasmine - Androsace occidentalis


Global Rank: G5
State Rank: S4S5
* (see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 3

External Links






State Rank Reason (see State Rank above)
Common throughout at least western and southcentral counties. Grows in disturbed as well as pristine sites and in a wide variety of habitats.
 
General Description
Puberulent, taprooted annual. Scapes usually several, 1–6 cm. Leaves lanceolate to oblanceolate, 4–12 mm long, entire. Umbel several-flowered, subtended by obovate bracts; pedicels 2–35 mm long. Flowers: corolla white, 1–2 mm across, included in the calyx; calyx hemispheric, 3–5 mm long, keeled below each lobe. Capsules 2–3 mm across (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Ontario to British Columbia, Arizona to Texas and Missouri.

Summary of Observations Submitted for Montana
Number of Observations: 37

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Grasslands, steppe, open forest, sometimes in disturbed soil; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Western Rock-jasmine — Androsace occidentalis.  Montana Field Guide.  .  Retrieved on , from