Dryopteris immixta Ching

Species

Pteridophytes > Polypodiales > Dryopteridaceae > Dryopteridoideae > Dryopteris

Characteristics

Rhizome ascending, apex densely covered with dark brown or nearly black, linear-lanceolate scales. Fronds caespitose. Stipes stramineous, 15-20 cm, 2-2.5 mm in diam., base densely covered with scales like those on rhizome; scales sparser upward. Lamina ovate-lanceolate, 15-25 × 15-18 cm, widest at base, bipinnate, acuminate. Pinnae 8-10 pairs; lowest pinnae largest, ca. 10 × 7 cm, ovate-lanceolate, stalked, acuminate; upper pinnae lanceolate, subsessile. Pinnules 5-8 pairs; lowest basiscopic pinnule on lowest pinna largest, 5-6 × 1-1.5 cm, pinnatipartite. Segments toothed, acute. Veins pinnate; veinlets forked or simple. Lamina subleathery, yellowish green; rachis covered with brown, lanceolate scales; pinna rachis and costa covered with brown bullate scales abaxially. Sori nearer to margin than to costa; indusia brown, reniform, erose.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 6-10

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Dryopteris immixta world distribution map, present in China, Japan, and Korea (Democratic People's Republic of)

Identifiers

LSID urn:lsid:ipni.org:names:17549190-1
WFO ID wfo-0001115064
COL ID 37WNJ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dryopteris hikonensis Dryopteris pacifica Dryopteris fuyangensis Dryopteris lungjingensis Dryopteris yushanensis Dryopteris immixta Dryopteris paravaria Dryopteris shanghaiensis Dryopteris tieanzuensis Dryopteris pudouensis Dryopteris quadrifida Dryopteris tianzuensis Polystichum pacificum Dryopteris varia var. hikonensis Polystichum hololepis var. hikonense