Polystichum erosum Ching & Shing

Species

Pteridophytes > Polypodiales > Dryopteridaceae > Dryopteridoideae > Polystichum

Characteristics

Plants ?evergreen. Rhizome erect, densely covered with scales; scales dark brown, black in center, lanceolate. Fronds 5-15 cm; stipe stramineous, 1-5 cm, 1-2 mm in diam. at base, densely covered with scales; scales reddish brown, lanceolate, margins ciliate, cilia tortuous. Lamina pinnate, linear-lanceolate or oblanceolate, 5-16 × 1-2.6 cm, slightly contracted at base, acuminate; rachis apex often with 1 proliferous bulbil, covered with dense or sparse scales abaxially; scales narrowly lanceolate, basal margins ciliate. Pinnae 14-25 pairs, lower pairs opposite, upper pairs alternate, angled at 90° with rachis or slightly so basiscopically, sessile, deltoid-ovate or oblong, middle pinnae 6-15 × 3-5 mm, bases asymmetrical, apices obtuse or rounded; acroscopic margins truncate, indistinctly auriculate, basiscopic bases cuneate, pinna margin with incurved acute teeth; microscales on adaxial surface sparse, linear, brown; microscales on abaxial veins dense or sparse, brown, narrowly lanceolate and linear; frond texture papery; venation pinnate, lateral veins free, or forked at base, slightly raised abaxially, indistinct adaxially. Sori in 1 row on each side of midrib; indusia large, 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 -
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

Polystichum erosum world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:17450900-1
WFO ID wfo-0001115325
COL ID 77V56
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Polystichum erosum Polystichum lacerum