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Polycarpon alsinifolium

Polycarpon tetraphyllum subsp. tetraphyllum

Polygala boykinii

Polygala boykinii var. sparsifolia

Polygala penaea subsp. penaea

Rectolejeunea evansiana

Polygala alba

White milkwort

Polygala arenicola

Polygala verticillata

Whorl milkwort

Polygala hemipterocarpa

Polygala verticillata var. isocycla

Polygonum aviculare var. arenastrum

Persicaria arifolia

Polygonum engelmannii

Rhus copallina

Polygonatum multiflorum

Solomon's-seal

Polygonatum pubescens

Hairy solomon's-seal

Polygonum arenastrum

Oval-leaf knotweed

Persicaria acuminata

Polygonum bistorta var. bistorta