Dryopteris saxifraga H.Ito

Species

Pteridophytes > Polypodiales > Dryopteridaceae > Dryopteridoideae > Dryopteris

Characteristics

Rhizome ascending or erect, apex densely covered with brown, narrowly lanceolate scales. Fronds caespitose. Stipes stramineous, 10-15 cm, 1.5-2 mm in diam., base densely clothed with brown, lanceolate scales; scales hairlike and deflexed farther up. Lamina ovate-lanceolate, tripinnate or bipinnate; lowest basiscopic pinnule pinnatipartite, 20-35 × 10-15 cm, deeply cordate, acuminate. Pinnae 8-10 pairs, deltoid-ovate; basal pinna largest, 5-8 × 2-4 cm; basiscopic one larger than on acroscopic side. Pinnules 5-8 pairs, ovate-lanceolate; lowest basiscopic pinnule on lowest pinna markedly largest, pinnatipartite or pinnatisect. Segments obtuse. Veins obscure on both surfaces. Lamina thickly papery, green; rachis covered with spreading, brown, saccate scales; pinna rachis densely covered with brown, bullate scales abaxially. Sori nearer costa than margin; indusia brown, reniform, entire.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
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Root system rhizome
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
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Hardiness (USDA) 5-10

Usage

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

Cultivation

Mode -
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Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:17392340-1
WFO ID wfo-0001117028
COL ID 37XM8
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dryopteris saxifraga Dryopteris varia var. saxifraga