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Phlebotaenia cowellii

Polygala chapmanii

Polygala hecatantha

Polygala longicaulis

Longstem milkwort

Polygala mariana

Maryland milkwort

Polygala paniculata

Orosne

Polygala polygama

Bitter milkwort

Polygala sanguinea

Common polygala

Polygala senega

Seneca snakeroot

Polygala vulgaris

Common milkwort

Polygala hookeri

Polygala leptostachys

Polygala watsonii

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