Taxonomy
Family: Ophioglossaceae
Habitat
Habitat information is lacking but in NY it has been found under northern white cedar in thin soil over limestone.
Associates
Distribution
Across middle and southern Canada to AK, south into ME, VT, northern and central NY, northern MI, northern WI, northern MN, ND, and south in mountains to CA, NV, and NM.
Morphology
Trophophore dull green, somewhat fleshy; pinnae up to 10 distant pairs, usually narrowly fan-shaped; sporophore 1-pinnate or 2-pinnate in very large robust plants, 1.5-2.5 length of trophophore.
Notes
Spores produced early June to August
Wetland category: NA
This species is tetraploid and resembles the hexaploid B. campestre. Like many other similar species it has in the past been treated as a variety of B. lunaria.
References
Gleason, Henry A.
and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States
and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Wagner, W.H, Jr. and
Wagner, F.S. 1993. Botrychium. In: Flora of North America North of
Mexico, Vol. 2. Oxford University Press, New York and Oxford.
© Michael Hough 2018 |