Difference between revisions of "Botrychium virginianum"
J. Bot. (Schrader) 1800(2): 111. 1801.
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Revision as of 20:22, 5 November 2020
Trophophore sessile; blade pale green, 3–4-pinnate, to 25 × 33 cm, thin, herbaceous. Pinnae to 12 pairs, usually approximate to overlapping, slightly ascending, distance between 1st and 2d pinnae not or slightly more than between 2d and 3d pairs, lanceolate, divided to tip. Pinnules lanceolate and deeply lobed, lobes linear, serrate, apex pointed, venation pinnate, midrib present. Sporophores 2-pinnate, 0.5–1.5(–2) times length of trophophore. 2n =184.
Phenology: Leaves seasonal, appearing in early spring and dying in late summer.
Habitat: Common to abundant, especially in shaded forests and shrubby second growth, rare or absent in arid regions
Elevation: 0–1500 m
Distribution
Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Ala., Alaska, Ariz., Ark., Colo., Conn., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Wyo., Mexico, Central America, South America in Brazil, Colombia, Ecuador, Peru, Eurasia.
Discussion
Botrychium virginianum is the most widespread Botrychium in North America.
Selected References
None.