Dryopteris campyloptera Clarkson

• Authority

  Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

• Family

  Dryopteridaceae

• Scientific Name

  Dryopteris campyloptera Clarkson

• Description

  Species Description - Rhizome horizontal, short-creeping; lvs deciduous, rather widely ascending-spreading, the petiole commonly about as long as the blade, beset with light brown, concolorous scales; blade mostly 3–5 × 2–3 dm, triangular to pentagonal, tripinnate-pinnatifid, with ca 15–20 pairs of pinnae; first two pinnules of the basal pinna offset by 4–12 mm, the basiscopic one evidently wider than the acroscopic one and (2–)3–5 times as long; ultimate segments finely spinulose-toothed; sori midway between the midvein and the margins; indusium sometimes with some stipitate glands, the lf otherwise glandless; rhizome horizontal, short-creeping; 2n=164, usually thought to be an alloploid of spp. 8 and 11 but hardly to be distinguished morphologically from the latter. Moist woods; Lab. and Nf. to s. Que., w. Mass., N.Y., and Pa., and s. in the mts. to N.C. and Tenn. (D. spinulosa var. americana; D. austriaca, misapplied)

• Common Names

  mountain wood-fern