Phegopteris connectilis |
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fougère du hêtre, long beech fern, narrow beech fern, northern beech fern, northern fern, phégoptère à segments joint |
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Stems | long-creeping, 1–2(–3) mm diam. |
Leaves | monomorphic, dying back in winter, often 1–2 cm apart, 15–60 cm. |
Petiole | straw-colored, (8–)15–36 cm × 1–3 mm, at base with scales brownish, lanceolate, glabrous or sparingly hairy on margin. |
Blade | narrowly to broadly deltate, usually somewhat longer than broad, (6–)12–25 cm, proximal pinnae longest and slightly narrowed at base, spreading or reflexed. |
Pinnae | deeply pinnatifid, (3–)6–12 × 1–3.3 cm, lowermost 1–2 pairs separate, sessile, more distal pairs strongly adnate and connected by narrow rachis wing; segments entire, or those of proximal pinna pair sometimes crenate, uncommonly shallowly lobed; proximal pair of veins from adjacent segments meeting margin above sinus, veins simple or sometimes forked in lowermost pinnae. |
Sori | subterminal on veins. |
Indument | abaxially of moderately to densely set hairs 0.3–1 mm along costae, veins, and blade tissue, costae also with scales light tan to shiny brown, ovate-lanceolate, spreading, to ca. 3 mm, scales sometimes sparingly hairy on margin. |
n | = 2n = 90, apogamous. |
Phegopteris connectilis |
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Habitat | In moist, strongly to moderately acid soil, or on rocks in shaded rock crevices |
Elevation | 0–2200 m (0–7200 ft) |
Distribution |
AK; CT; DE; IA; ID; IL; IN; MA; MD; ME; MI; MN; MO; MT; NC; NH; NJ; NY; OH; OR; PA; RI; TN; VA; VT; WA; WI; WV; AB; BC; MB; NB; NF; NS; NT; ON; PE; QC; SK; YT; SPM; Greenland; Eurasia
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Source | FNA vol. 2. |
Parent taxa | Thelypteridaceae > Phegopteris |
Sibling taxa | |
Synonyms | Polypodium connectile, Dryopteris phegopteris, P. polypodioides, Polypodium phegopteris, Thelypteris phegopteris |
Name authority | (Michaux) Watt: Canad. Naturalist & Quart. J. Sci. 3: 29. (1866) |
Web links |
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