Kingdom:
Phylum:
Angiosperms
Order:
Caryophyllales
Genus:
Species:
cathayanum
ID:
1240840

Status:
valid

Authors:
A.J.Li

Source:
tro

Year:
1995

Citation Micro:
Bull. Bot. Res., Harbin 15: 417 (1995)

WFO Identifier:
wfo-0001240178



Common Names

  • Polygonum cathayanum
  • Chinese Knotweed
  • Chinese Smartweed


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Description

Polygonum cathayanum (also called Chinese Knotweed, among many other common names) is a species of flowering plant in the family Polygonaceae. It is native to China and is found in the East Asian temperate forests. It is a perennial herb that grows up to 40 cm tall and has small, oval-shaped leaves. It is found in moist, shady areas.

Uses & Benefits

Polygonum cathayanum is used as an ornamental plant in gardens and parks. It is also used for medicinal purposes.

Flower, Seeds and Seedlings

Polygonum cathayanum has small, white flowers with four petals and a single pistil. Its seeds are small, round and black. The seedlings have small, oval leaves.

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Cultivation and Propagation

Polygonum cathayanum is an evergreen shrub that can be propagated by seed or cuttings. It prefers moist, well-drained soil and full sun to partial shade. It is drought tolerant and can tolerate temperatures down to -7°C (20°F).

Where to Find Polygonum cathayanum

Polygonum cathayanum is native to China and can be found in moist, shady areas.

Polygonum cathayanum FAQ

What is the common name of Polygonum cathayanum?

Chinese Knotweed

What is the natural habitat of Polygonum cathayanum?

Lowland and montane forests of China

What is the scientific classification of Polygonum cathayanum?

Kingdom: Plantae, Order: Caryophyllales, Family: Polygonaceae, Genus: Polygonum, Species: P. cathayanum

Species in the Polygonum genus

Polygonum icaricum, Polygonum idaeum, Polygonum albanicum, Polygonum arenarium, Polygonum arenastrum, Polygonum acetosum, Polygonum salsugineum, Polygonum scoparium, Polygonum tenoreanum, Polygonum perfoliatum, Polygonum plebeium, Polygonum romanum, Polygonum rurivagum, Polygonum ramosissimum, Polygonum douglasii, Polygonum floribundum, Polygonum equisetiforme, Polygonum filicaule, Polygonum bellardii, Polygonum boreale, Polygonum aviculare, Polygonum cognatum, Polygonum careyi, Polygonum maritimum, Polygonum patulum, Polygonum papillosum, Polygonum oxyspermum, Polygonum glaucum, Polygonum gussonei, Polygonum longiocreatum, Polygonum longipes, Polygonum istanbulicum, Polygonum americanum, Polygonum basiramium, Polygonum parksii, Polygonum angustifolium, Polygonum coriarium, Polygonum divaricatum, Polygonum dshawachischwilii, Polygonum erectum, Polygonum hissaricum, Polygonum humifusum, Polygonum jurii, Polygonum panjutinii, Polygonum thunbergii, Polygonum tripterocarpum, Polygonum weyrichii, Polygonum brittingeri, Polygonum lacerum, Polygonum paraguayense,

Species in the Polygonaceae family

Acanthoscyphus parishii, Afrobrunnichia africana, Afrobrunnichia erecta, Antigonon flavescens, Antigonon guatimalense, Antigonon leptopus, Aristocapsa insignis, Atraphaxis intricata, Atraphaxis angustifolia, Atraphaxis aucheri, Atraphaxis avenia, Atraphaxis badghysi, Atraphaxis billardieri, Atraphaxis bracteata, Atraphaxis canescens, Atraphaxis caucasica, Atraphaxis compacta, Atraphaxis daghestanica, Atraphaxis decipiens, Atraphaxis frutescens, Atraphaxis grandiflora, Atraphaxis irtyschensis, Atraphaxis karataviensis, Atraphaxis kopetdagensis, Atraphaxis laetevirens, Atraphaxis macrocarpa, Atraphaxis manshurica, Atraphaxis muschketowii, Atraphaxis pungens, Atraphaxis pyrifolia, Atraphaxis rodinii, Atraphaxis seravschanica, Atraphaxis spinosa, Atraphaxis suaedifolia, Atraphaxis teretifolia, Atraphaxis virgata, Atraphaxis arianum, Atraphaxis atraphaxiforme, Atraphaxis toktogulicum, Brunnichia ovata, Calligonum acanthopterum, Calligonum aciferum, Calligonum aculeatum, Calligonum aequilaterale, Calligonum alaschanicum, Calligonum alatiforme, Calligonum alatum, Calligonum amoenum, Calligonum androssowii, Calligonum aphyllum,

References

The Plant List v1.1 record tro-50106450: Based on the initial data import
An Jen Li (b.1927): Based on occurrence of standard abbreviation 'A.J.Li' in the authors string.