Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Idaho Saxifrage - Micranthes idahoensis
Other Names:  Micranthes marshallii, Saxifraga marshallii, Saxifraga idahoensis, Saxifraga occidentalis var. idahoensis

No photos are currently available
If you have a high quality photo of this species, are confident in the identification, and would like to submit it for inclusion on the Montana Field Guide, please send it to us using our online photo submission tool.


Image Copyright and Usage Information
Native Species

Global Rank: G4
State Rank: S4
C-value: 7


Agency Status
USFWS:
USFS:
BLM:


 

External Links

 
General Description
Perennial from a simple rootstock. Stems solitary, scapose, 10–25 cm, glandular-hairy. Leaves basal (rarely 1 cauline), petiolate; the blade broadly ovate, truncate or rounded to the petiole, 1–4 cm long, prominently dentate, glabrous above, sparsely brown hairy beneath. Inflorescence glandular, spreading-paniculate. Flowers: calyx cup-shaped with lobes 1–2 mm long; hypanthium <0.5 mm long; petals obovate, white, 2–3 mm long with 2 yellow spots at the base; ovary superior. Capsule 2–4 mm long, follicle-like (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Lesica (2012) treats this species as M. marshallii.

Species Range
Montana Range Range Descriptions

Native
 


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

Observations in Montana Natural Heritage Program Database
Number of Observations: 2

(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
Very shallow, usually moss-covered soil on rock outcrops in the montane to timberline zones.

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.
  • Web Search Engines for Articles on "Idaho Saxifrage"
Login Logout

Take us with you! PDF icon

Look for this PDF icon as you search and browse.  Click it to build a custom PDF with species shown on that page or for all the species within that taxonomic level.  To create your own list of species, use the PDF Creator tool at the bottom of the Advanced Search page.

Here's some links if you want to download a whole group.

Mammals
Birds
Reptiles
Amphibians
Fish
Invertebrates
Butterflies / Moths
Dragonflies / Damselflies
Ferns and allies
Conifers
Flowering Plants (Dicots)
Flowering Plants (Monocots)
Bryophytes
Lichens
Ecological Systems
Noxious Weeds
Citation for data on this website:
Idaho Saxifrage — Micranthes idahoensis.  Montana Field Guide.  .  Retrieved on , from