Lanceleaf Moonwort - Botrychium lanceolatum
State Rank Reason (see State Rank above)
Reported from approximately two dozen sites. Population levels are poorly documented. As this species was not previously tracked in the state, it may be under-reported.
Plants 5–15 cm. Trophophore dark green to yellow-green, triangular, up to 5 cm long, with 1 to 3 pairs of lobed pinnae; the pinnae ascending and not overlapping. Sporophore 1 to 3 times pinnate, 1 to 2.5 times as long as trophophore. According to Farrar (unpublished) our plants are subspecies lanceolatum
, although Lesica (2012) indicates that subspecies lanceolatum
and the putatively eastern subspecies angustisegmentum
are difficult to separate (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX; Donald Farrar (Iowa State Univeristy; unpublished manuscript))
In MT in the western third east to Park County; AK to MT south to AZ, and NM (Donald Farrar, Iowa State University, unpublished ms).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
In a variety of habitats from wet to moist, grassy and rocky slopes, meadows, woods, roadsides, and edges of lakes, generally at fairly high elevations.
- 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.
- Wagner, W.H., and E.S. Wagner. 1983. Genus communities as a systematic tool in the study of new world Botrychium (Ophioglossaceae). Taxon 32(1): 51-63.