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Montana Field Guides

Rusty-hair Saxifrage - Micranthes ferruginea
Other Names:  Saxifraga ferruginea

Native Species

Global Rank: G5
State Rank: S4
C-value: 8


Agency Status
USFWS:
USFS:
BLM:


 

External Links






 
General Description
Perennial from a simple or rarely branched rootstock. Stems 1 to several, erect, 10–40 cm, pubescent below, glandular above. Leaves all basal with broad petioles; the blade 2–10 cm long, spatulate with dentate margins on the upper half. Inflorescence an open, many-flowered panicle; some flowers replaced by tiny plantlets. Flowers: calyx saucer-shaped with lobes 1–2 mm long; hypanthium absent; petals clawed, white, 3–5 mm long, the upper 3 with 2 yellow, basal spots, ovary superior. Capsule 3–6 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
AK to AB south to CA, ID and MT (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 39

(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
Moist rock ledges, fens, wet, gravelly soil along streams, often in moss; 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?
    • 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.
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Citation for data on this website:
Rusty-hair Saxifrage — Micranthes ferruginea.  Montana Field Guide.  .  Retrieved on , from