Polygonum angustifolium Pall.

Persicaire à feuilles de saule (fr), Renouée à feuilles de saule (fr)

Species

Angiosperms > Caryophyllales > Polygonaceae > Polygonum

Characteristics

Herbs perennial. Stems erect, 20-50 cm tall, branched; branches spreading, striate, glabrous. Petiole very short or nearly absent; leaf blade narrowly linear, 3-6 cm × 2-4 mm, both surfaces glabrous, midvein prominent, lateral veins inconspicuous abaxially, base narrow, margin conspicuously revolute, apex slightly obtuse; ocrea caducous, tubular, membranous, veined, dehiscent. Inflorescence paniculate, lax; rachis and branches glabrous; bracts brown, ovate, membranous, apex acute, each 1-3-flowered. Pedicel 1.5-2 mm, apex articulate. Perianth white or milky white, 5-parted; tepals elliptic, unequal, 2-2.5 mm. Stamens 8, included. Styles 3, short; stigmas capitate. Achenes included in persistent perianth, brown, shiny, ovoid-rhomboid, trigonous, 2-2.5 mm. 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) 0.2 - 0.5
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) 5-10

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 angustifolium world distribution map, present in China, Kazakhstan, Liberia, and Mongolia

Identifiers

LSID urn:lsid:ipni.org:names:695363-1
WFO ID wfo-0001100835
COL ID 4L933
BDTFX ID 51349
INPN ID 114646
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Polygonum divaricatum f. glabrum Polygonum angustifolium Pleuropteropyrum angustifolium Persicaria angustifolia Polygonum acidulum Polygonum alpinum var. angustissimum Polygonum polymorphum var. angustissimum