Polystichum lachenense (Hook.) Bedd.

Species

Pteridophytes > Polypodiales > Dryopteridaceae > Dryopteridoideae > Polystichum

Characteristics

Plants summer-green. Rhizome erect, densely covered with broadly lanceolate brown scales. Fronds 6-14 cm; stipe stramineous, 2-6 cm, slender, ca. 0.5 mm in diam. at base, lower part persistent, covered with brown, linear and narrowly lanceolate scales. Lamina 1-pinnate, linear, 5-14 cm × 8-16 mm, contracted at base, acuminate; rachis without proliferous bulbils, both surfaces glabrous, or only with few scales; scales light brown, narrowly lanceolate. Pinnae 12-15 pairs, alternate, attached at right angles to rachis or slightly ascendant, sparsely arranged, sessile or shortly stalked, ovate, middle pairs 5-8 × 3-4 mm, bases broadly cuneate or rounded-cuneate, sometimes acroscopic bases slightly auriculate, margins with small acute teeth or pinnatilobate, apices rounded or rarely acute; both surfaces glabrous or with few microscales; microscales light brown, narrowly lanceolate; frond texture papery; venation pinnate on pinnules, lateral veins dichotomous, indistinct on both surfaces. Sori often on upper pinnae only, in 1 row on each side of midrib; indusia present, toothed.
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

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Cultivation

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Distribution

Polystichum lachenense world distribution map, present in Bhutan, China, India, Japan, Myanmar, Nepal, Pakistan, Taiwan, Province of China, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:17207210-1
WFO ID wfo-0001117054
COL ID 7874Y
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Polystichum aleuticum Aspidium lachenense Polystichum tsuchuense Polystichum sinkiangense Polystichum xinjiangense Polystichum lachenense