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Montana Field Guide

Montana Field Guides

Western Saxifrage - Micranthes occidentalis
Other Names:  Saxifraga occidentalis

Native Species

Global Rank: G5
State Rank: S4S5
C-value: 6


Agency Status
USFWS:
USFS:
BLM:


 

External Links






 
General Description
Perennial from a simple rootstock, often with bulblets among roots. Stems usually solitary, scapose, erect, 3–30 cm, glandular-hairy. Leaves all basal, petiolate; the blade broadly elliptic to ovate, 1–6 cm long, dentate. Inflorescence glandular, paniculate (sometimes congested); the flowers clustered at the branch tips. Flowers: calyx cup-shaped with lobes 1–2 mm long; hypanthium 0.5 mm or less long; petals obovate, white, 2–3 mm long; ovary at least 3/4 superior. Capsule 3–5 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range

Year-round
 


Range Comments
AB south to OR, NV and WY (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 49

(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
Rock outcrops, vernally moist, usually stony soil of grasslands, meadows, turf; valleys to alpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Aho, Ken Andrew. 2006. Alpine and Cliff Ecosystems in the North-Central Rocky Mountains. Ph.D. Dissertation. Bozeman, Montana: Montana State University. 343 p.
    • Fultz, J.E. 2005. Effects of shelterwood management on flower-visiting insects and their floral resources. M.Sc. Thesis. Bozeman, MT: Montana State University. 163 p.
    • Williams, K.L. 2012. Classification of the grasslands, shrublands, woodlands, forests and alpine vegetation associations of the Custer National Forest portion of the Beartooth Mountains in southcentral Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 376 p.
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Citation for data on this website:
Western Saxifrage — Micranthes occidentalis.  Montana Field Guide.  .  Retrieved on , from