White flowers Leaves opposite

Aesculus parviflora

Agastache nepetoides

Anemonella thalictroides

Apocynum cannabinum

Arenaria patula

Arenaria serpyllifolia

Arenaria stricta

Asclepias perennis

Asclepias stenophylla

Asclepias variegata

Asclepias verticillata

Bacopa rotundifolia

Blephilia hirsuta

Cabomba caroliniana

Catalpa bignonioides

Catalpa speciosa

Cephalanthus occidentalis

Cerastium brachypetalum

Cerastium glomeratum

Chelone glabra

Chionanthus virginicus

Circaea quadrisulcata

Claytonia virginica

Clematis dioscoreifolia

Clematis virginiana

Cornus drummondii

Cornus obliqua

Cornus racemosa