armstrong

Polygonum aviculare

Genus

Polygonum

Family

Polygonaceae

Common Names

birdweed, centinode, common knotgrass, crabweed, doorweed, dooryard weed, hundred-knot, iron grass, knotgrass, ninety-knot, ninety-knot grass, pinkweed, sidewalk weed, sparrow tongue, stoneweed, swine's grass, way grass, wireweed, beggarweed [2], bird's tongue [3], cow grass [3], crab grass [2], goose grass [4], knotweed [2], wire grass [4]