Dryopteris amurensis Christ

Species

Pteridophytes > Polypodiales > Dryopteridaceae > Dryopteridoideae > Dryopteris

Characteristics

Rhizome erect, with stolons. Fronds caespitose. Stipes dark brown below, stramineous above, 20-30 cm, sparsely scaly; scales light brown, lanceolate. Lamina pentagonal, 20-23 × 20-22 cm, deeply cordate, tripinnate. Pinnae 5-7 pairs; lowest pinnae largest, deltoid, up to 10 × 8 cm. Pinnules 5-7 pairs; basiscopic pinnules larger than those on acroscopic side; lowest basiscopic pinnule on lowest pinna largest, 6-7 × 2-3 cm, pinnatisect, directed downward. Ultimate pinnules 5-7 pairs, deltoid-ovate, pinnatifid or pinnatipartite. Segments or serrate with long aristate teeth. Lamina papery, green; rachis and pinna rachis sparsely covered with light brown, lanceolate scales; costa covered with light brown, bullate scales abaxially. Sori on either side of costa; indusia brown, reniform, entire. n = 41.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality -
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Root system rhizome
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Nitrogen fixer -
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Environment

Light -
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Hardiness (USDA) 5-10

Usage

Uses medicinal
Edible -
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Human toxicity -
Animal toxicity -

Cultivation

Mode -
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Distribution

Dryopteris amurensis world distribution map, present in China, Japan, Liberia, Korea (Democratic People's Republic of), and Russian Federation

Identifiers

LSID urn:lsid:ipni.org:names:17247120-1
WFO ID wfo-0001115754
COL ID 6DMKB
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Leptorumohra amurensis Nephrodium amurense Dryopteris amurensis