Polygonum

Polygonum dentoceras

Polygonum lacerum

Polygonum articulatum

Polygonum tenerum

Polygonum polygaloides subsp. esotericum

Polygonum polygaloides subsp. confertiflorum

Polygonum rottboellioides var. tibeticum

Polygonum rottboellioides var. rottboellioides

Polygonum norvegicum

Polygonum bargusinense

Polygonum ajanense subsp. ajanense

Polygonum basiramia

Polygonum uvifera

Polygonum arenastrum

Oval-leaf knotweed

Polygonum engelmannii

Polygonum bellardii

Narrowleaf knotweed

Polygonum bistorta var. bistorta

Polygonum bolanderi

Polygonum sawatchense

Polygonum spergulariiforme