Dryopteris clintoniana (Eaton) Dowell
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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
Dryopteridaceae
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Scientific Name
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Description
Species Description - Sterile and fertile lvs similar or only slightly different, evergreen, to 13 dm; petiole to 3.5 dm, scaly at the base, the scales ovate, ca 1 cm, concolorous or with darker brown center; blade lanceolate, commonly 1.5–2 dm wide, pinnate-pinnatifid, ± acuminate; pinnae mostly 10–18 pairs, the larger ones mostly 7–11 × 2–4 cm, short-petiolulate, lance-oblong, acuminate, the 10–15 pairs of segments oblong, 10–23 × 6–9 mm, obtuse, incurved-serrate or biserrate, the teeth subspinulose; veins 5–7 pairs per segment; basal pinnae relatively short and broad-based, mostly 1.5–2.5 times as long as wide; 2n=246, thought to be an alloploid of nos. 3 [Dryopteris cristata (L.) A. Gray] and 5 [Dryopteris goldiana (Hook.) A. Gray]. Swamps and wet woods; Me. and Que. to Wis., s. to N.Y., n. N.J., n. Pa., n. O., and n. Ind.
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Common Names
Clinton's wood-fern