Polygonum viscosum Buch.-ham. ex D.Don

Species

Angiosperms > Caryophyllales > Polygonaceae > Polygonum

Characteristics

Herbs annual, odoriferous. Stems erect or ascending, 50-90 cm tall, much branched, densely hirsute and glandular hairy. Petiole short or nearly absent; leaf blade ovate-lanceolate or elliptical-lanceolate, 5-15 × 2-4 cm, both surfaces hispid, densely so along veins, margin entire, densely shortly ciliate; ocrea tubular, 1-1.2 cm, membranous, densely glandular hairy and hirsute, apex truncate, long ciliate. Inflorescence terminal or axillary, spicate, 2-4 cm, usually several spikes aggregated and panicle-like; peduncles densely hirsute and glandular hairy; bracts funnel-shaped, hirsute and glandular hairy, margin sparsely long ciliate, each 3-5-flowered. Pedicels longer than bracts. Perianth pinkish, 5-parted; tepals elliptic, ca. 3 mm. Stamens 8, included. Styles 3, connate to below middle. Achenes included in persistent perianth, black-brown, shiny, broadly ovoid, trigonous, ca. 2.5 mm. Fl. Jul-Sep, fr. Aug-Oct.
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An annual herb. It grows 50-100 cm high. The branches have glandular hairs. The leaves are sword shaped and 5-13 cm long by 2-4 cm wide. They are wedge shaped at the base. There are short stiff hairs on both surfaces. The flowers are pink. They are in cylinder shaped clusters at the ends of branches. The fruit is dry and 3 sided and 3 mm long. It is black and shiny.
Life form annual
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 0.5 - 0.95
Root system creeping-root
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

It is a temperate plant. It grows from sea level to 1,900 m above sea level. It grows in wetlands.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 6-11

Usage

The young plant is used as a spice.
Uses medicinal spice
Edible leaves seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
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 viscosum world distribution map, present in Bangladesh, China, India, Japan, Myanmar, Nepal, Korea (Democratic People's Republic of), Thailand, Taiwan, Province of China, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:696624-1
WFO ID wfo-0001101641
COL ID 4F9Z4
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Polygonum viscosum Persicaria viscosa Polygonum kuekenthalii Persicaria kuekenthalii Polygonum viscosum var. minus