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Montana Field Guide

Montana Field Guides

Yellowstone Saxifrage - Micranthes subapetala
Other Names:  Saxifraga oregana var. subapetala, Micranthes hieraciifolia, Saxifraga subapetala

Native Species

Global Rank: G3G4Q
State Rank: S4

Agency Status


External Links

General Description
Plants solitary or clumped, with bulbils on stems. Leaves basal, petiole about 2 cm long, flattened; blades 3-15 cm long, ovate to elliptic or oblanceolate, margins entire to minutely denticulate, ciliate, surfaces hairy. Inflorescence 20-75 cm, 30+-flowered, spikelike to more open, yellow to pink (or rarely purplish) tipped stipitate-glandular. Sepals reflexed, ovate; petals absent or sometimes 1-5 (if so then 1-2 mm long, elliptic, clawed and shorter than sepals), pink to purplish; filaments linear, flattened; pistils fused below about halfway; ovary inferior. Capsules valvate, dark purple (adapted from: Brouillet & Elvander, 2009, in Flora N. America, Vol. 8).

Species Range
Montana Range Range Descriptions


Range Comments
MT, WY and ID (Kartesz in prep. 2012).

Observations in Montana Natural Heritage Program Database
Number of Observations: 17

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



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

Subapline and alpine meadows, wet banks, ledges (Brouillet & Elvander, 2009, in Flora of North America)

  • 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.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 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:
Yellowstone Saxifrage — Micranthes subapetala.  Montana Field Guide.  .  Retrieved on , from