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Montana Field Guide

Montana Field Guides

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


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 8

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 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 7

(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 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Rusty-hair Saxifrage — Micranthes ferruginea.  Montana Field Guide.  .  Retrieved on , from