Dryopteris alpestris Tagawa

Species

Pteridophytes > Polypodiales > Dryopteridaceae > Dryopteridoideae > Dryopteris

Characteristics

Plants 9-25 cm tall. Rhizome erect, short, densely scaly; scales brown, ovate, entire. Fronds caespitose; stipe stramineous or dark brown, 3-10 cm, with sparse scales similar to those on rhizome; lamina oblong-lanceolate, 8-18 × 2-5 cm, bipinnate, slightly narrowed to base, apex obtuse; pinnae 8-10 pairs, oblique or spreading, approximate, shortly stalked, basal pair slightly shorter than next one, ovate or oblong, 2-2.5 cm, ca. 1.3 cm wide at base, apex obtuse; pinnules 3-5 pairs, approximate, spreading, ovate-orbicular, base broadly adnate to costa, apex rounded, strongly dentate, basal pair 5-7 mm in length and width. Lamina herbaceous, glabrous on both surfaces; veins obscure on both surfaces, one vein per tooth; rachis with ovate, brown scales, rachis and stipe with dense, yellow glands (white when young). Sori limited to upper part of frond, 2 or 3 pairs on each pinnule; indusia brown, membranous, with sparse teeth.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.09 - 0.25
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) 7-11

Usage

Uses -
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 alpestris world distribution map, present in Bhutan, China, India, Myanmar, Nepal, and Taiwan, Province of China

Identifiers

LSID urn:lsid:ipni.org:names:17389900-1
WFO ID wfo-0001117940
COL ID 37VTR
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dryopteris alpestris