Noveboracense is the Latin for New York
Rhizome: long-creeping, triangular scales.
Frond: 75 cm high by 15 cm wide, deciduous, monomorphic, blade/stipe ratio: 2:1 or more.
Stipe: straw-colored, shading to green, scales tan to reddish brown, ovate, vascular bundles: 2, oblong, at 90°, at stipe base, merging above to a u-shape.
Blade: 1-pinnate-pinnatifid, cuts falling short of meeting the costa by 1 mm, elliptic, tapering to both ends, the lowest pinnae less than 1 cm long, membranous, yellow-green, transparent needlelike hairs, sparsely glandular, the margins also hairy.
Pinnae: 20 to 24 pair, lanceolate, long tapering, less incised near the ends; pinnules oblong, about 1 cm; costae grooved above, discontinuous with the rachis; margins entire or crenate; veins free, forked or not.
Sori: round, small, nearer the margin than the costule, absent from the ends of the pinnules (or the pinnae), indusium: reniform, tan, withering, at a sinus, maturity: early to mid-summer.
Habitat: moist woods, especially near swamps, streams, and in vernal seeps of ravines, often in slightly disturbed secondary forests, frequently forming large colonies .
Distribution: eastern North America.
Hardy to -30°C, USDA Zone 4.
Having the same aggressiveness, habitat and coloration as Dennstaedtia punctilobula, but differing dramatically in the tapering down of the lower blade here vs. widest near the bottom for the Dennstaedtia. The latter is also more divided.
Polypodium noveboracense Linnaeus
Dryopteris noveboracensis (Linnaeus) A. Gray
Parathelypteris noveboracensis (Linnaeus) Ching
Thelypteris thelypterioides (Michaux) Holub