Eagle Pass Blacksenna
Ear Muhly
Eared Redstem
Eared Veinfern
Earle's Fescue
Earleaf Brickellbush
Earleaf Fanpetals
Easterbonnets
Eastern Cottonwood
Eastern Mojave Buckwheat
Eastern Poison Ivy
Eastwood Fescue
Eastwood's Monkeyflower
Eastwood's Sandwort
Eaton's Aster
Eaton's Fleabane
Eaton's Lipfern
Ebony Sedge
Echeandia
Echinocactus
Echinocystis
Eclipta
Eelgrass
Egeria
Egg Milkvetch
Eggleaf Fiddleleaf
Eggleston's Milkvetch
Egret Mudplantain
Egyptian Grass
Ehrenberg's Vervain
El Paso Gilia
El Paso Skyrocket
Elderberry
Elegant Cinquefoil
Elephant Tree
Elephanthead Lousewort
Elkweed
Elliott's Bentgrass
Elliptical Buttercup
Ellis' Shootingstar
Elm
Emory Oak
Emory's Baccharis
Emory's Barrel Cactus