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Yellowstone Saxifrage - Micranthes subapetala
Other Names:
Saxifraga oregana var. subapetala, Micranthes hieraciifolia, Saxifraga subapetala
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
Native
Range Comments
MT, WY and ID (Kartesz in prep. 2012).
Observations in Montana Natural Heritage Program Database
Number of Observations: 17
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Relative Density
Recency
(Observations spanning multiple months or years are excluded from time charts)
Habitat
Subapline and alpine meadows, wet banks, ledges (Brouillet & Elvander, 2009, in Flora of North America)
References
- Additional ReferencesLegend:
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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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