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Espeletiopsis pleiochasia

Polygonatum biflorum

American solomon's-seal

Persicaria amphibia

Amphibious bistort

Polygonum arenarium

European knotweed

Fallopia baldschuanica

Chinese fleecevine

Polygonum bidwelliae

Bidwell knotweed

Polygonum californicum

Polygonum argyrocoleon

Daphne reichsteinii

Daphnopsis boissieri

Daphnopsis leguizamensis

Archidendron ellipticum subsp. ellipticum

Daphnopsis pillopillo

Persicaria capitata

Japanese knotweed

Podachaenium chimalapanum

Fallopia convolvulus

Black bindweed

Polygonum douglasii

Douglas's knotweed

Polygonum equisetiforme

Horsetail knotweed

Persicaria glabra

Denseflower knotweed

Lomatium hallii

Hall's biscuitroot