Adiantum juxtapositum Ching

Species

Pteridophytes > Polypodiales > Pteridaceae > Vittarioideae > Adiantum

Characteristics

Plants 8-20 cm tall. Rhizomes erect, short, scales black lanceolate. Fronds clustered; stipe castaneous, glossy, 2-9 cm, ca. 1 mm in diam., glabrous; lamina 1-pinnate, lanceolate in outline, 4-11 × 1.5-3 cm; costae and stalks same color as stipe, smooth; pinnules 5-9 pairs, opposite, nearly alternate upward, horizontally spreading; stalk 2-3 mm, articulate, persistent after pinnules fall; blade orbicular or broadly orbicular-flabellate (rarely obtriangular), ca. 1 × 1.2-1.5 cm, subleathery, adaxially greenish, abaxially glaucous and glabrous, base rounded-cuneate (rarely cuneate), upper margin rounded, slightly undulate; distal pinnules slightly smaller, obtriangular or flabellate; veins multidichotomously branching and reaching cartilaginous margins, visible on both surfaces. Sori (1-)3 or 4(or 6) per pinnule; false indusia black, orbicular or orbicular-reniform (rarely elongated), leathery, upper margins flat and straight or slightly depressed, entire or slightly undulate, persistent. Perispore indistinctly granular.
Life form -
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.08 - 0.2
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) -

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

Adiantum juxtapositum world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:17368060-1
WFO ID wfo-0001122265
COL ID 653JQ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Adiantum juxtapositum