Pink flowers  Leaves opposite

Agalinis heterophylla

Asclepias amplexicaulis

Catharanthus roseus

Centaurium pulchellum

Conradina canescens

Cuphea carthagenesis

Mirabilis jalapa

Monarda citriodora

Penstemon australis

Phlox amoena

Phlox carolina

Phlox nivalis

Polygala cruciata

Rotala ramosior

Scutellaria racemosa

Trillium catesbaei