Dryopteris expansa (C.Presl) Fraser-Jenk. & Jermy

  • Authority

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

  • Family


  • Scientific Name

    Dryopteris expansa (C.Presl) Fraser-Jenk. & Jermy

  • Description

    Species Description - Much like no. 10 [Dryopteris campyloptera Clarkson]; rhizome often more ascending or suberect; lvs more upright, the petiole half to fully as long as the blade; scales with a dark center; 2n=82. Moist woods and rocky slopes; interruptedly circumboreal, in Amer. s. to Que., s. Ont., n. Mich., nw. Minn., and Calif. (D. dilatata)

  • Common Names

    northern wood-fern