Kingdom:
Phylum:
Angiosperms
Order:
Caryophyllales
Species:
japonica
ID:
406774

Status:
valid

Authors:
Houtt.

Source:
cmp

Year:
1777

Citation Micro:
Nat. Hist. 2(8): 640, t. 51, f. 1 (1777)

WFO Identifier:
wfo-0000406106



Common Names

  • Reynoutria japonica
  • Japanese Knotweed
  • Fleeceflower


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Synonyms

  • Reynoutria hachidyoensis (Makino) Nakai in Jotani [unknown]
  • Reynoutria hachijoensis Nakai ex Jotani [unknown]
  • Reynoutria henryi Nakai [unknown]
  • Reynoutria hastata Nakai ex Ui [unknown]
  • Reynoutria uzenensis (Honda) Honda [unknown]
  • Tiniaria japonica (Houtt.) Hedberg [unknown]
  • Pleuropterus zuccarinii Small [unknown]
  • Pleuropterus cuspidatus (Siebold & Zucc.) H.Gross [unknown]
  • Polygonum reynoutria Makino [unknown]
  • Polygonum zuccarinii Small [unknown]
  • Polygonum cuspidatum Siebold & Zucc. [unknown]
  • Polygonum compactum Hook.f. [unknown]
  • Polygonum hachidyoense Makino [unknown]
  • Fallopia japonica colorans (Makino) Yonek. [unknown]
  • Polygonum reynoutria colorans Makino [unknown]
  • Fallopia japonica (Houtt.) Ronse Decr. [unknown]
  • Fallopia japonica compacta (Hook.f.) J.P.Bailey [unknown]
  • Fallopia japonica hachidyoensis (Makino) Yonek. & H.Ohashi [unknown]
  • Fallopia japonica uzenensis (Honda) Yonek. & H.Ohashi [unknown]
  • Polygonum cuspidatum spectabile Noter [unknown]
  • Reynoutria japonica compacta (Hook.f.) Buchheim [unknown]
  • Reynoutria japonica spectabilis (Noter) Moldenke [unknown]
  • Polygonum sieboldii de Vriese ex L.H.Bailey [unknown]
  • Reynoutria japonica hastata (Nakai ex Ui) Honda [unknown]
  • Fallopia compacta (Hook.f.) G.H.Loos & P.Keil [unknown]
  • Reynoutria compacta (Hook.f.) P.D.Sell [unknown]
  • Reynoutria hachidyoensis terminalis Honda [unknown]
  • Reynoutria japonica terminalis (Honda) Kitag. [unknown]
  • Fallopia japonica compacta J.Bailey [unknown]

Description

Reynoutria japonica (also called Japanese Knotweed, among many other common names) is a perennial grass species native to East Asia. It grows in dense tufts with narrow, linear leaves and a cylindrical spikelet. It is found in moist, shady areas of forests and meadows.

Uses & Benefits

Reynoutria japonica is used as an ornamental plant in gardens and parks. It is also used as a windbreak and for erosion control. The leaves of this plant can be used in salads and as a tea.

Flower, Seeds and Seedlings

Reynoutria japonica has small white flowers with yellow anthers and a single seed in the middle. The seedlings are slender and have a single leaf at the top. The seed is small and black.

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Cultivation and Propagation

Reynoutria japonica is a perennial plant that is native to East Asia. It can be propagated by seed or division. It prefers moist, well-drained soil and full sun. It is drought tolerant and can tolerate some shade. It can be propagated by division in spring or autumn.

Where to Find Reynoutria japonica

Reynoutria japonica is native to tropical and subtropical regions of the Americas, Africa, and Asia.

Reynoutria japonica FAQ

What is the scientific name of Reynoutria japonica?

Reynoutria japonica

What is the common name of Reynoutria japonica?

Japanese knotweed

Where is Reynoutria japonica native to?

Australia

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