Kingdom:
Phylum:
Angiosperms
Order:
Caryophyllales
Genus:
Species:
platyphyllum
ID:
1102397

Status:
valid

Authors:
S.X.Li & Y.L.Chang

Source:
tro

Year:
1965

Citation Micro:
Fl. Pl. Herb. Chin. Bor.-Or. 2: 51, 108 (1959); cf. Kitagawa in Journ. Jap. Bot. xl. 56 (1965).

WFO Identifier:
wfo-0001101735



Common Names

  • Polygonum platyphyllum
  • Platyphyllum Knotweed
  • Platyphyll Knotweed


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Description

Polygonum platyphyllum (also called Broad-leaved Knotweed, among many other common names) is a perennial herbaceous plant native to East Asia. It has a creeping rhizome and its stems are erect, up to 1 m tall. It is found in moist meadows, riverbanks, and roadsides.

Uses & Benefits

Polygonum platyphyllum is used as an ornamental plant in gardens and parks. It is also used as a medicinal plant to treat various ailments such as fever, colds, and indigestion.

Flower, Seeds and Seedlings

The flower of Polygonum platyphyllum is small and yellow, with three petals. The seed is a small, dark brown nutlet. The seedlings are small, with long, narrow leaves.

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Cultivation and Propagation

Polygonum platyphyllum is a hardy perennial plant which can be grown in full sun or partial shade. It prefers moist, well-drained soil and can tolerate temperatures down to -20°C. Propagation can be done by division in spring or by seed in spring or autumn.

Where to Find Polygonum platyphyllum

Polygonum platyphyllum can be found in the western United States.

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-26002598: Based on the initial data import
Shu Xin Li (b.1926): Based on occurrence of standard abbreviation 'S.X.Li' in the authors string.
Yui Liang Chang (1923-1977): Based on occurrence of standard abbreviation 'Y.L.Chang' in the authors string.