Phegopteris hexagonoptera |
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broad beech fern, phégoptère à hexagones, southern beech fern |
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Stems | long-creeping, 2–4 mm diam. |
Leaves | monomorphic, dying back in winter, often 1–2 cm apart, ca. 25–75 cm. |
Petiole | straw-colored, (7–)20–45 cm × 1.5–3 mm, at base with scales tan, lanceolate, glabrous or marginally hairy. |
Blade | broadly deltate, about as broad as long, (8–)15–33 cm, proximal pinnae longest and narrowed at base, usually spreading or slightly ascending. |
Pinnae | 7–20 × 2–6(–8) cm, all connected by wing along rachis, deeply pinnatifid; segments entire or largest pinnatifid about halfway to costule; proximal pair of veins from adjacent segments meeting margin above sinus, veins often forked. |
Sori | subterminal on veins. |
Indument | abaxially of moderately to densely set hairs mostly 0.1–0.25 mm along costae and veins, also of yellowish stalked glands 0.1 mm on veins and blade tissue, costae with whitish to light tan, narrowly lanceolate, spreading, marginally hairy scales to ca. 1.5 mm. |
2n | = 60. |
Phegopteris hexagonoptera |
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Habitat | In moist woods, usually in full shade, often in moderately acid soils |
Elevation | 0–1000 m (0–3300 ft) |
Distribution |
AL; AR; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; NH; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV; ON; QC
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Discussion | G. A. Mulligan and W. J. Cody (1979) reported hybrids between Phegopteris hexagonoptera and P. connectilis from a few localities in Quebec, New Brunswick, and Nova Scotia. These hybrids are apogamous and have a chromosome number of 2n = 120. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 2. |
Parent taxa | Thelypteridaceae > Phegopteris |
Sibling taxa | |
Synonyms | Polypodium hexagonopterum, Dryopteris hexagonoptera, Thelypteris hexagonoptera |
Name authority | (Michaux) Fée |
Web links |