Difference between revisions of "Botrychium oneidense"
Amer. Midl. Naturalist 7: 126. 1905.
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|genus=Botrychium | |genus=Botrychium | ||
|subgenus=Botrychium subg. Sceptridium | |subgenus=Botrychium subg. Sceptridium |
Latest revision as of 21:23, 5 November 2020
Trophophore stalk 2–15 cm, 1.5–2.5 times length of blade rachis; blade dull bluish green, ± plane, 2–3-pinnate, to 15 × 20 cm, ± leathery. Pinnae to 5 pairs, usually remote, horizontal to ascending, distance between 1st and 2d pinnae not or slightly more than between 2d and 3d pairs, undivided except in proximal 2/3–3/4. Pinnules obliquely ovate, margins finely crenulate to denticulate, apex rounded to acute, venation pinnate. Sporophores 2–3-pinnate, 1.5–2.5 times length of trophophore. 2n =90.
Phenology: Leaves green over winter, sporophores seasonal, new leaves appearing in spring.
Habitat: In moist, shady, acidic woods and swamps
Elevation: 0–1200 m
Distribution
![V2 493-distribution-map.gif](/w/images/9/9a/V2_493-distribution-map.gif)
N.B., Ont., Que., Conn., Del., D.C., Ind., Ky., Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., Vt., Va., W.Va., Wis.
Discussion
Botrychium oneidense commonly occurs with B. dissectum and B. multifidum. Young individuals of both may resemble B. oneidense (W.H. Wagner Jr. 1961b).
Selected References
None.