polygonum

/ pəˈlɪɡənəm /

noun

1. any polygonaceous plant of the genus Polygonum, having stems with knotlike joints and spikes of small white, green, or pink flowers See also knotgrass bistort prince's feather

Word History and Origins

Origin of polygonum¹

C18: New Latin, from Greek polugonon knotgrass, from polu- poly- + -gonon, from gonu knee

Example Sentences

But San Francisco biotech firm Tinctorium believes it has the answer: genetically engineering bacteria to mirror the way the Japanese indigo plant, Polygonum Tinctorium, makes and holds its colour.

From BBC

Polygonum coccineum was the most prominent plant in the pond edge association.

From Project Gutenberg

An herbaceous plant of the genus Polygonum, section Bistorta; snakeweed; adderwort.

From Project Gutenberg

Polygonum.—A large family, varying much in character, often weedy, but of easy culture in ordinary soil.

From Project Gutenberg

In varieties of Poa, Polygonum, Allium, Gagea, etc., this phenomenon is constant in plants growing in damp situations.

From Project Gutenberg