Anleit. Kenntn. Gew. 3: 172. 1804
Phenology: Leaves green over winter, new leaves appearing in late spring.
Habitat: In variety of habitats, open grassy areas to deep forest
Elevation: 0–1500 m
N.B., N.S., Ont., Que., Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va., Wis., West Indies in the Antilles.
Botrychium dissectum is highly variable, even within the same population. In Florida and along the Gulf Coast, the extremely lacerate form is absent, and the blade segments are usually strongly angular, trowel-shaped, and dentate. In eastern Kentucky and central Tennessee in forested valleys, on shale and limestone soils, plants have narrowly linear, somewhat blunt-tipped segments with a more or less whitish gray central line above the veins. This variant, which grows with B. dissectum, may deserve recognition as a distinct species.