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Montana Field Guide

Montana Field Guides

Northern Moonwort - Botrychium pinnatum
Other Names:  Botrychium boreale ssp. obtusilobum

Species of Concern

Global Rank: G5
State Rank: S3

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 7

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General Description
Plants 5–20 cm. Trophophore green, lanceolate, up to 8 cm long with up to 7 pairs of pinnae; at least the lowest pairs deeply lobed and nearly overlapping the ones above. Sporophore 2 times pinnate; 1 to 2 times as long as trophophore (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Phenology
Leaves appearing in June to August.

Species Range
Present
 


Range Comments
In MT scattered in various counties from the northwest to Park County; AK, YT and NT south through BC and AB to CA, NV, ID, WY and CO (Donald Farrar, Iowa State University, unpublished ms.)

Summary of Observations Submitted for Montana
Number of Observations: 42

(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
Wide variety of habitats, including wet to moist grassy slopes, streambanks, roadsides, and mossy woods, generally in the mountains. In Idaho and Oregon, found in shaded cedar forest.

References
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Citation for data on this website:
Northern Moonwort — Botrychium pinnatum.  Montana Field Guide.  .  Retrieved on , from