Polygonum ajanense (Nakai) Grig.

Species

Angiosperms > Caryophyllales > Polygonaceae > Polygonum

Characteristics

Herbs perennial. Stems erect, 30-40 cm tall, branched from base. Petiole very short; leaf blade lanceolate or broadly lanceolate, 3-5(-7) × 0.7-1.5 cm, on both surfaces or abaxially strigose, base broadly cuneate, margin entire, ciliate, apex acute; ocrea tubular, membranous, pilose or glabrous. Inflorescence paniculate, spreading, lax; bracts ovate, pubescent or glabrous, each 1-or 2-flowered. Pedicel 2-2.5 mm, apex articulate. Perianth white or pinkish, 5-parted; tepals elliptic, 2.5-3 mm. Stamens 8, included; anthers yellow. Styles 3; stigmas capitate. Achenes included in persistent perianth, brown, slightly shiny, ovoid, trigonous. Fl. Jul-Aug, fr. Aug-Sep.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.4
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 1-3
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

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

Cultivation

Mode -
Germination duration (days) 21 - 60
Germination temperacture (C°) 21 - 23
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Polygonum ajanense flower picture by かめ (cc-by-sa)

Distribution

Polygonum ajanense world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:695328-1
WFO ID wfo-0001101510
COL ID 4L926
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Pleuropteropyrum ajanense Polygonum ajanense Polygonum polymorphum var. ajanense