Dryopteris sieboldii (Van Houtte) Kuntze

Species

Pteridophytes > Polypodiales > Dryopteridaceae > Dryopteridoideae > Dryopteris

Characteristics

Plants 0.5-1 m tall. Rhizome erect, short, stout; scales of rhizome and lower part of stipe dense, pale brown, lanceolate. Fronds caespitose; stipe dark stramineous or ferruginous, 20-60 cm × 2-5 mm, subglabrous upward; lamina oblong or deltoid-ovate, 25-40 × ca. 20 cm, once imparipinnate; pinnae 1-4 pairs, broadly lanceolate or oblong-lanceolate, 15-20 × 2.5-3.5(-6) cm, base rounded or rounded-cuneate, slightly inequilateral, shortly stalked, apex acuminate, terminal pinna similar but larger and with longer stalks than lower pinnae, pinnae entire or incised-serrate. Lamina thickly leathery, glabrous adaxially, rarely with filiform scales; veins indistinct, pinnate, veinlets simple or forked, 4-6 in pinnate groups, basal one of each group at distal side shorter, remainder extending toward margin. Sori abaxial in middle of veinlets, in 3 or 4 irregular rows along both sides of costa; indusia reniform, entire.
More
A fern. It grows 50 cm high and spreads 50 cm wide. The fronds are large and have leaflets along the stalk. There are 5-7 leaflets. These are blue-green in colour. The leaflets are oblong or sword shaped. The edges are irregular with fine teeth. The fertile fronds are larger.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) 0.5 - 0.75
Mature height (meter) 0.5
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

A hardy fern. In China it grows between 400-900 m above sea level. It suits hardiness zones 7-10.
More
Woods, C. and S. Japan. On the rather dry floor of mountain forests.
Light 3-6
Soil humidity 5-7
Soil texture 1-4
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 7-9

Usage

A flour is made from the roots.
Uses environmental use food
Edible roots
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions.
Mode divisions
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -12
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Dryopteris sieboldii unspecified picture

Distribution

Dryopteris sieboldii world distribution map, present in China and Japan

Identifiers

LSID urn:lsid:ipni.org:names:17100120-1
WFO ID wfo-0001117012
COL ID 37XPB
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Polystichum sieboldii Lastrea sieboldii Pycnopteris sieboldii Lastrea podophylla Nephrodium sieboldii Dryopteris sieboldii