Persicaria sagittata (L.) H.Gross  
Family: Polygonaceae
arrow vine, arrow-leaved tearthumb
[Polygonum sagittatum L., Polygonum sagittatum var. gracilentum L., Tracaulon sagittatum (L.) Small, Tracaulon sagittatum var. gracilentum (L.) Small, Truellum sagittatum (L.) Soják]
Persicaria sagittata image
Merel R. Black  
Etymology: Persicaria: peach-like, the medieval name for knotweed
Plants: climbing or tangling, annual, 3'-6' long, slender forb; 4 -angled stems very prickly
Leaves: alternate; triangular with wide, flaring lobes at the base
Flowers: pink to white, 5-parted, 3/8" long, egg-shaped, stalkless, petals and petal-like sepals; inflorescence short, rounded, uninterrupted clusters both terminal and from the leaf axils; blooms Aug.-Sept.
Fruits: dry seed
Habitat: wet; marshes, swamps, wet meadows
Persicaria sagittata image
Aaron Carlson  
Persicaria sagittata image
Merel R. Black  
Persicaria sagittata image
Robert W. Freckmann  
Persicaria sagittata image
Merel R. Black  
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