Polygonum platyphyllum S.X.Li & Y.L.Chang

Persicaire amphibie (fr), Persicaire flottante (fr), Renouée amphibie (fr)

Species

Angiosperms > Caryophyllales > Polygonaceae > Polygonum

Characteristics

Herbs perennial. Stems erect, large, to ca. 100 cm tall, glabrous; branches spreading. Petiole short or nearly absent; leaf blade ovate or ovate-lanceolate, 6-10 × 2.5-5 cm, both surfaces pilose, base cuneate or broadly cuneate, margin entire or slightly undulate, densely ciliate; ocrea tubular, membranous, pilose, dehiscent. Inflorescence paniculate, spreading; rachis and branches glabrous; bracts ovate-triangular, apex acuminate, each 2-or 3-flowered. Pedicels erect, equaling bracts, ca. 2 mm, glabrous, apex articulate. Perianth white, 5-parted; tepals elliptic, ca. 2 mm. Stamens 8, included. Styles 3; stigmas capitate. Achenes distinctly exceeding persistent perianth, usually erect, brown, shiny, oblong, trigonous, 4-5 mm. Fl. Jun-Jul, fr. Aug-Sep.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.0
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 -
Soil texture -
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 -

Distribution

Polygonum platyphyllum world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:696259-1
WFO ID wfo-0001101735
COL ID 4L9TF
BDTFX ID 51648
INPN ID 114828
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Polygonum platyphyllum Pleuropteropyrum platyphyllum