Earina aestivalis 
Early coralroot 
Early marsh-orchid 
Early purple orchid 
Early Spider-Orchid 
Eastern Blue-Eyed Grass 
Eastern early-purple orchid 
Eastern Mantis Orchid 
Eastern mantis orchid 
Eastern wallflower orchid 
Eduard's Porroglossum 
Egg-in-a-nest orchid 
Elder-flowered Orchid 
Elephant Garlic 
Elleanthus aurantiacus 
Elleanthus hymenophorus 
Elleanthus robustus 
Elleanthus virgatus 
Elwes's snowdrop 
Embre's Maxillaria 
Enchanted Dancing Lady 
Enchanting Masdevallia 
Encyclia alata 
Encyclia alboxanthina