Northern Moonwort - Botrychium pinnatum
Botrychium boreale ssp. obtusilobum
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)
Leaves appearing in June to August.
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to Park County; AK, YT and NT south through BC and AB to CA, NV, ID, WY and CO (Donald Farrar, Iowa State University, unpublished ms.)
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
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.
- Additional ReferencesLegend: View Online Publication
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- Farrar, Donald. 2011. Moonwort (Botrychium) Systematics. Ada Hayden Herbarium. Iowa State University.
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Mantas, M. and R.S. Wirt. 1995. Moonworts of western Montana (Botrychium subgenus Botrychium). Flathead National Forest. 103 pp.