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Any of numerous plants of the genus Polygonum and several closely related genera of the family Polygonaceae, characterized by stems with knotlike joints and sheathing stipules.

[New Latin Polygonum, genus name, from Greek polugonon, knotgrass : polu-, poly- + gonu, knee; see genu- in Indo-European roots.]


(Plants) any polygonaceous plant of the genus Polygonum, having stems with knotlike joints and spikes of small white, green, or pink flowers. Also called (obsolete): polygony See also knotgrass, bistort, prince's feather2
[C18: New Latin, from Greek polugonon knotgrass, from polu- poly- + -gonon, from gonu knee]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.polygonum - diverse genus of herbs or woody subshrubs of north temperate regionsPolygonum - diverse genus of herbs or woody subshrubs of north temperate regions
dicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination
buckwheat family, family Polygonaceae, Polygonaceae - a family of plants of order Polygonales chiefly of the north temperate zone; includes the buckwheats
China fleece vine, Polygonum aubertii, Russian vine, silver lace vine - twining perennial vine having racemes of fragrant greenish flowers; western China to Russia
buckwheat, Fagopyrum esculentum, Polygonum fagopyrum - a member of the genus Fagopyrum; annual Asian plant with clusters of small pinkish white flowers and small edible triangular seeds which are used whole or ground into flour
kiss-me-over-the-garden-gate, Polygonum orientale, prince's-feather, prince's-plume, princess feather - annual with broadly ovate leaves and slender drooping spikes of crimson flowers; southeastern Asia and Australia; naturalized in North America
References in periodicals archive ?
That said, a number of members of the Polygonum genus are also weeds.
Polygonum produces high contents of antioxidants like phenolics, terpenoids, flavonoids, cardiac glycosides, etc.
The only other plant noted on the shores was the Small Knotweed, Polygonum plebejum.
polygonum aviculare or know grass), tonlosgach [this word accurately describes the effect of sitting on the weed, as I know from youthful experience] 'Tonlosgach' here gave his own literal rendition of the English words 'arse' and 'smart' in a tongue-in-cheek Irish translation.
tabaci were Portulaca oleracea, Polygonum plebejum and Echinochloa colona; whereas Cyperus rotundus was moderately preferred and Trianthema monogyna, Cynodon dactylon, Digera arvensis and Corchorus antichorus were the least preferred weed plants.
The functional megaspore undergoes three successive mitoses resulting in the formation of an 8- nucleate embryo sac of the Polygonum type.
Gastroprotective activity of Polygonum chinense aqueous leaf extract on ethanol-induced hemorrhagic mucosal lesions in rats.
endophyte of the medicinal Polygonum senegalense exhibited cytotoxic activity against L5178Y mouse lymphoma cells (Aly et al, 2008).
Triffid For an eyesore emergency try Polygonum baldschuanicum - also known as Russian vine and sometimes as milea-minute because of the speed it grows.
Plantaginaceae Herb 61 Podophyllum Podophyllaceae Herb hexandrum Royle 62 Polygonum Polygonaceae Herb amplexicaule Don 63 P rumicifolium Polygonaceae Herb Roy 64 P viviparum L.