Dryopteris dehuaensis Ching & K.H.Shing

Species

Pteridophytes > Polypodiales > Dryopteridaceae > Dryopteridoideae > Dryopteris

Characteristics

Rhizome ascending, densely covered with castaneous or black, linear-lanceolate scales at apex. Fronds caespitose. Stipes dark brown at base and stramineous upward, 25-35 cm, ca. 4 mm in diam., brown and densely covered with lanceolate, black-purple scales at base; upward scales becoming small and black, appressed. Lamina pentagonal-lanceolate, 35-45 × 25-30 cm, deeply cordate, tripinnate, pinnatifid at apex. Pinnae 10-14 pairs, alternate or subopposite, broadly lanceolate, stalked; basal pinnae largest, up to 17 × 10 cm, with stalks 3-4 cm. Pinnules 15-18 pairs, lanceolate; lowest basiscopic pinnule on lowest pinna distinctly enlarged, directed downward, pinnatisect; pinnules on upper part pinnatifid or pinnatilobate. Ultimate pinnules oblong, entire on both sides, obtuse, with an apical tooth. Veins pinnate; veinlets simple or forked, visible abaxially. Lamina subleathery or papery, dark green; rachis and pinna rachis densely covered with linear-lanceolate, ciliate, black scales; pinnule rachis and costa covered with brown, bullate scales abaxially. Sori medial, exindusiate.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
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Mature height (meter) -
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Hardiness (USDA) 6-10

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
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Distribution

Dryopteris dehuaensis world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:17540650-1
WFO ID wfo-0001126599
COL ID 37W9L
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dryopteris dehuaensis Dryopteris gushanica Dryopteris neosordidipes