Delosperma

Delphinium

Desert Candle

Dianthus 

Dicentra 

Dictamnus

Dittany

Donkey Tail Spurge

Dutchman's Breeches

Echinacea 

Echinops 

English Lavender

Eremurus

Eryngium

Eupatorium

Euphorbia

Eutrochium

 

False Indigo 

False Solomon's Seal

False Sunflower

Fernleaf Bleeding Heart

Fernleaf Phacelia

Fingerleaf

Foamflower

Foamy Bells

Foxtail Lily