Scrabble?! SMARTWEEDS

Definitions of SMARTWEEDS in various dictionaries:

Polygonum is a genus of about 220 species of flowering plant in the buckwheat and knotweed family Polygonaceae. Common names include knotweed, knotgrass, bistort, tearthumb, mile-a-minute, smartweed and several others. In the Middle English glossary of herbs Alphita (c. 1400-1425), it was known as ars-smerte. There have been various opinions about how broadly the genus should be defined. For example, Buckwheat (Fagopyrum esculentum) has sometimes been included in the genus as Polygonum fagopyrum. The genus primarily grows in northern temperate regions. The species are very diverse, ranging from prostrate herbaceous annual plants under 5 cm (2 in) high to erect herbaceous perennial plants growing up to 34 m (1013 ft) tall to perennial woody vines growing up to 2030 m (6698 ft) high in trees. Several are aquatic, growing as floating plants in ponds. The smooth-edged leaves range from 130 cm (0.3911.81 in) long, and vary in shape between species from narrow lanceolate to oval, broad tria