Kingdom:
Phylum:
Angiosperms
Order:
Caryophyllales
Genus:
Species:
dubium
ID:
1102046

Status:
valid

Authors:
Stein ex A.Braun

Source:
tro

Year:
1824

Citation Micro:
Flora 7: 357 (1824)

WFO Identifier:
wfo-0001101384



Common Names

  • Polygonum dubium
  • Doubtful Knotweed
  • Doubtful Smartweed


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Description

Polygonum dubium (also called Dubious Knotweed, among many other common names) is an annual or perennial herbaceous plant native to North America. It has a slender stem, reaching up to 60 cm in height, and oval-shaped leaves. It grows in moist soils, such as in meadows, ditches, and disturbed areas.

Uses & Benefits

Polygonum dubium is used as an ornamental plant in gardens and as a medicinal plant for treating various ailments such as fever, skin diseases, and digestive problems.

Flower, Seeds and Seedlings

The flowers of Polygonum dubium are small, white or pink and clustered in dense heads. The seeds are small and black, with a single seed per head. The seedlings are small and have a single cotyledon.

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Cultivation and Propagation

Polygonum dubium is a perennial herbaceous plant native to Europe. It is a fast-growing plant that can reach a height of up to 1.5m. It prefers moist, well-drained soils in full sun or partial shade. Propagation is best done by division or stem cuttings. Division should be done in the spring or early summer. Stem cuttings should be taken from the current season's growth and planted in a moist, well-drained soil.

Where to Find Polygonum dubium

Polygonum dubium is native to Europe and can be found in the wild in France, Germany, Italy, and Spain.

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-26001751: Based on the initial data import
Alexander Braun (1805-1877): Based on occurrence of standard abbreviation 'A.Braun' in the authors string.
Berthold Stein (1847-1899): Based on occurrence of standard abbreviation 'Stein' in the authors string.