Cryptogramma stelleri (S.G.Gmel.) Prantl
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Pteridaceae
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Scientific Name
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Description
Species Description - Rhizomes slender, soft, creeping, pilose and scaly, the pale brown, hyaline-reticulate scales not over 2 × 0.5 mm; lvs scattered, thin and soft, deciduous; petioles castaneous or dark purple basally, usually greenish or stramineous distally, 2.5–15 cm, the fertile ones commonly longer than the sterile; sterile blades 3–8 × 2–5 cm, 2–3 times pinnate with confluent, flabellate to ovate, distally toothed pinnules 5–15 × 3–10 mm; fertile blades with longer and narrower, sometimes linear pinnules to 2 cm × 3(–5) mm, the rather narrowly reflexed, evidently hyaline-scarious indusial margin more strongly modified than in C. crispa; 2n=60. Calcareous rocks and moist shady slopes, circumboreal, in Amer. from Nf. to Alas., s. to n. N.J. (formerly), n. Pa., W.Va., Ill., Io., Utah, and Wash.
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Common Names
slender rock-brake