polygonum
- any polygonaceous plant of the genus Polygonum, having stems with knotlike joints and spikes of small white, green, or pink flowersSee also knotgrass, bistort, prince's feather (def. 2)
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Word Origin for polygonum
C18: New Latin, from Greek polugonon knotgrass, from polu- poly- + -gonon, from gonu knee
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Examples from the Web for polygonum
Historical Examples of polygonum
Both the viviparous grass and the polygonum are found in England.
More Science From an Easy ChairSir E. Ray (Edwin Ray) Lankester
Meissner records a similar augmentation in Polygonum orientale.
Vegetable TeratologyMaxwell T. Masters
Polygonum Persicaria (lady's-thumb), log-path, Chesuncook, 1853.
The Maine WoodsHenry David Thoreau
Polygonum cilinode (fringe-jointed false-buckwheat), common.
The Maine WoodsHenry David Thoreau
From the dried root of bistort or snake-weed (Polygonum Bistorta), by percolation with temperate distilled water.