Polygonum darrisii H.Lév.

Species

Angiosperms > Caryophyllales > Polygonaceae > Polygonum

Characteristics

Herbs annual. Stems climbing or scandent, reddish purple, 1-2 cm tall, angulate, with sparse recurved prickles along angles. Petiole 3-6 cm, retrorsely prickly; leaf blade narrowly triangular or triangular-sagittate, 4-10 × 3-5 cm, abaxially sparsely prickly along midvein, adaxially glabrous, base sagittate, margin retrorsely prickly, apex acuminate; ocrea tubular, apex with green herbaceous lanceolate-auriculate wing, margin not ciliate. Inflorescence terminal or axillary, capitate; peduncle usually simple, sparsely prickly; bracts narrowly ovate, apex acuminate, usually each 2-flowered. Pedicels shorter than bracts. Perianth white or pinkish, 5-parted; tepals elliptic. Stamens 8, in 2 whorls, included. Styles 3, connate to middle; stigmas capitate. Achenes included in persistent perianth, black-brown, dull, subglobose, weakly trigonous, ca. 3 mm. Fl. Jun-Aug, fr. Sep-Oct.
Life form annual
Growth form herb
Growth support climber
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.01 - 0.02
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 darrisii world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:695623-1
WFO ID wfo-0001245673
COL ID 4L99V
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Polygonum sagittifolium Persicaria sagittifolia Truellum darrisii Polygonum darrisii Persicaria senticosa var. sagittifolia Polygonum senticosum var. sagittifolium