Polygonum paronychioides C.A.Mey.

Knotweed (en)

Species

Angiosperms > Caryophyllales > Polygonaceae > Polygonum

Characteristics

Subshrubs prostrate or ascending, 5-15 cm tall, papillate. Petiole short, articulate; leaf blade green, linear, 8-15 × 0.7-1.5 mm, both surfaces scabrous, midvein conspicuous, base narrowly cuneate, margin revolute, apex spinose; ocrea broadly lanceolate, 5-8 mm, thinly membranous, hyaline, margin lacerate, apex acute. Flower solitary, axillary; bracts lanceolate, longer than perianth. Pedicel very short. Perianth pinkish, 5-cleft to 1/2; tepals unequal, outer 2 narrowly lanceolate, ca. 2 mm, apex acuminate, inner 3 elliptic, short, apex obtuse. Stamens 8; filaments dilated at base. Achenes included in persistent perianth, shiny, narrowly ellipsoid, trigonous, ca. 2 mm, smooth. Fl. Jun-Aug, fr. Jul-Sep.
Life form perennial
Growth form
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.15
Root system rhizome
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 medicinal
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 paronychioides world distribution map, present in Afghanistan, Armenia, Azerbaijan, China, India, Iran (Islamic Republic of), Iraq, Kazakhstan, Kyrgyzstan, Liberia, Pakistan, Tajikistan, Turkmenistan, Uzbekistan, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:696212-1
WFO ID wfo-0001101600
COL ID 4L9SB
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Polygonum englerianum Polygonum paronychioides Polygonum himalayense