Polygonum assamicum Meisn.

Species

Angiosperms > Caryophyllales > Polygonaceae > Polygonum

Characteristics

Herbs annual. Stems ascending or decumbent, 15-30 cm tall, glabrous. Petiole 3-6 mm, sparsely appressed hispidulous; leaf blade green, blue-green when dry, elliptic-ovate or broadly lanceolate, 2.5-6 × 1-2 cm, abaxially appressed hispidulous along veins, adaxially glabrous, base broadly cuneate, apex acute; ocrea tubular, membranous, sparsely appressed hispidulous along veins, apex truncate, long ciliate. Inflorescence terminal, spicate, solitary or several aggregated and panicle-like; spike lax, 2.5-4 cm, usually decurrent at base; bracts green, herbaceous, ciliate, each 1-3-flowered. Perianth reddish, 5-parted; tepals elliptic, 2.5-3 mm. Stamens 5 or 6, included. Styles 2; stigmas capitate. Achenes included in persistent perianth, narrowly ovoid, biconvex, ca. 2.5 mm. Fl. Jun-Jul, fr. Aug-Sep.
Life form annual
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.3
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) 7-12

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 assamicum world distribution map, present in Bangladesh, China, India, and Myanmar

Identifiers

LSID urn:lsid:ipni.org:names:695402-1
WFO ID wfo-0001245273
COL ID 4L942
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Persicaria assamica Polygonum assamicum