Botrychium lineare W.H. Wagner
Best Time to Search
Available evidence indicates the annual above-ground activity of B. lineare is primarily from the middle of May to the middle of June. This is the best time to search. In cool and moist summers, the period of growth may be extended to the end of June or the early part of July.
Welby Smith, MN DNR, 2018
Barton, D., and S. Crispin. 2004. Conservation status of Botrychium lineare (slender moonwort) in Montana. Report to the U. S. Fish and Wildlife Service. Montana Natural Heritage Program, Helena.
Carlton, J. 1999. A petition to list Botrychium lineare as threatened or endangered under the Endangered Species Act. Biodiversity Legal Foundation.
Farrar, D. R. 2009. Determination of the taxonomic relationship between Botrychium lineare and Botrychium campestre. A study conducted under Order No. 10181-5-M847 of the U.S. Fish and Wildlife Service.
Farrar, D. R. 2011. Systematics and taxonomy of the genus Botrychium. <http://www.public.iastate.edu/~herbarium/botrychium.html>. Accessed 19 November 2016.
Minnesota Department of Natural Resources. 2003. Field guide to the native plant communities of Minnesota: the Laurentian mixed forest province. Ecological Land Classification Program, Minnesota County Biological Survey, and Natural Heritage and Nongame Research Program. Minnesota Department of Natural Resources, St. Paul, Minnesota. 352 pp.
Minnesota Department of Natural Resources. 2005. Field guide to the native plant communities of Minnesota: the prairie parkland and tallgrass aspen parklands provinces. Ecological Land Classification Program, Minnesota County Biological Survey, and Natural Heritage and Nongame Research Program. Minnesota Department of Natural Resources, St. Paul, Minnesota. 362 pp.
NatureServe. 2009. NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.1. NatureServe, Arlington, Virginia.
United States Fish and Wildlife Service (USFWS). 2000. Endangered and threatened wildlife and plants; 90-Day finding of a petition to add Botrychium lineare (Slender Moonwort) to the list of threatened and endangered species. Federal Register 65 FR 30048:30048-30050.
United States Fish and Wildlife Service (USFWS). 2007. Endangered and threatened wildlife and plants; review of native species that are candidates for listing as endangered or threatened; annual notice of findings on resubmitted petitions; annual description of progress on listing actions. Federal Register 72 FR 69033:69033-69106.
Wagner, W. H., Jr., and F. S. Wagner. 1994. Another widely disjunct, rare and local North American moonwort (Ophioglossaceae: Botrychium subg. Botrychium). American Fern Journal 84(1):5-10.