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B. acuminatum Flora of North America, www.eFloras.org 26 Dec 2011
B. ascendens Flora of North America, www.eFloras.org 26 Dec 2011
B. boreale Flora of North America, www.eFloras.org 26 Dec 2011
B. campestre Flora of North America, www.eFloras.org 26 Dec 2011
B. crenulatum Flora of North America, www.eFloras.org 26 Dec 2011
B. daucifolium Taiwan Plant Names, www.eFlora.org 27 Dec 2011
Montgomery, James D. (1990). «Survivorship and Predation Changes in Five Populations of Botrychium dissectum in Eastern Pennsylvania». American Fern Journal. 4. 80 (4): 173–182. JSTOR1547206. doi:10.2307/1547206
B. rugulosum Robert W. Freckmann Herbarium, University of Wisconsin - Stevens Point 27 Dec 2011
worldcat.org
Hauk, Warren D.; Parks, Clifford R.; Chase, Mark W. (2003). «Phylogenetic studies of Ophioglossaceae: evidence from rbcL and trnL-F plastid DNA sequences and morphology». Molecular Phylogenetics and Evolution. 28 (1): 131–151. ISSN1055-7903. doi:10.1016/S1055-7903(03)00032-0