Polystichum prescottianum (wall. ex Mett.) T.moore

Species

Pteridophytes > Polypodiales > Dryopteridaceae > Dryopteridoideae > Polystichum

Characteristics

Plants summer-green. Rhizome erect, covered with broadly lanceolate dark brown scales. Fronds 30-40 cm; stipe 8-12 cm, ca. 3 mm in diam. at base, lower part persistent, stramineous, scaly; scales light brown, ovate, lanceolate, and linear. Lamina bipinnatifid, oblanceolate, 28-38 × 3-4 cm, gradually contracted toward base, acuminate; rachis without proliferous bulbils, adaxially covered with scales; scales light brown, lanceolate and hairlike. Pinnae 30-32 pairs, alternate, attached at right angles to rachis, hardly approximate, sessile, narrowly deltoid-ovate or deltoid-ovate, middle pairs 1.5-2 cm × 8-9 mm, bases slightly auriculate acroscopically and basiscopically, pinnatipartite to or nearly to pinna rachis, apices acuminate or obtuse, aristate. Lobes 4-6 pairs, nearly opposite, slightly ascendant, hardly approximate, oblong, apices acuminate or obtuse, margins with small teeth, tips of teeth aristate; microscales on abaxial surface light brown, linear and filiform; microscales on adaxial surface sparse, brown, hairlike; frond texture papery; venation pinnate on lobes, indistinct abaxially, somewhat distinct adaxially. Sori on upper pinnae, often in 1 row on each side of pinna rachis; indusia present, subentire.
Life form perennial
Growth form herb
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Foliage retention evergreen
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Root system rhizome
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Environment

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Hardiness (USDA) 6-11

Usage

Uses medicinal
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Cultivation

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Distribution

Polystichum prescottianum world distribution map, present in Afghanistan, Bhutan, China, India, Myanmar, Nepal, Pakistan, and Taiwan, Province of China

Identifiers

LSID urn:lsid:ipni.org:names:17208120-1
WFO ID wfo-0001118547
COL ID 6W77B
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Polystichum prescottianum Polystichum moupinense Aspidium moupinense Dryopteris prescottiana Polystichum castaneum Aspidium prescottianum Polystichum salwinense Polystichum erinaceum Polystichum yadongense Polystichum pseudocastaneum Polystichum brunneum Polystichum bomiense Polystichum prescottianum var. castaneum Polystichum prescottianum var. moupinense Polystichum prescottianum f. castaneum Aspidium prescottianum var. castaneum