Calico Cactus
Echinocereus engelmannii
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Engelmann's Hedgehog Cactus
Echinocereus engelmannii var. acicularis
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Engelmann's Hedgehog Cactus
Echinocereus engelmannii var. armatus
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Engelmann's Hedgehog Cactus
Echinocereus engelmannii var. chrysocentrus
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Howe's Hedgehog Cactus
Echinocereus engelmannii var. howei
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Three Spine Hedgehog Cactus
Echinocereus mojavensis
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Rough Barnyard Grass
Echinochloa muricata
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Echinochloa muricata var. microstachya
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Upright Burhead
Echinodorus berteroi
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False Daisy
Eclipta prostrata
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Ear Drops
Ehrendorferia chrysantha
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White Eardrops
Ehrendorferia ochroleuca
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Shortseed Waterwort
Elatine brachysperma
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California Waterwort
Elatine californica
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Chilean Waterwort
Elatine chilensis
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Mosquito Waterwort
Elatine heterandra
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Southwestern Waterwort
Elatine rubella
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Spike Rush
Eleocharis acicularis
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Needle Spike-rush
Eleocharis acicularis var. acicularis
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Eleocharis acicularis var. gracilescens
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Eleocharis acicularis var. occidentalis
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Purple Spikerush
Eleocharis atropurpurea
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Beautiful Spikerush
Eleocharis bella
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Eleocharis bernardina
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Bolander's Spikerush
Eleocharis bolanderi
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Eleocharis coloradoensis
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Decumbent Spikerush
Eleocharis decumbens
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Engelmann's Spikerush
Eleocharis engelmannii
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Eleocharis engelmannii var. detonsa
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Eleocharis engelmannii var. engelmannii
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Yellow Spikerush
Eleocharis flavescens
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Eleocharis flavescens var. flavescens
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Canada Spikesedge
Eleocharis geniculata
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Common Spikerush
Eleocharis macrostachya
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Sand Spikerush
Eleocharis montevidensis
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Broad Spiked Spikerush
Eleocharis obtusa
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Ovate Spikerush
Eleocharis ovata
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Common Spike-rush
Eleocharis palustris
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Parish's Spikerush
Eleocharis parishii
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Small Spikerush
Eleocharis parvula
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Fewflower Spikerush
Eleocharis quinqueflora
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Creeping Spikerush
Eleocharis radicans
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Beaked Spikerush
Eleocharis rostellata
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Suksdorf's Spikerush
Eleocharis suksdorfiana
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California Twisted Spikerush
Eleocharis torticulmis
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Two-leaf Waterweed
Elodea bifoliata
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Elodea
Elodea canadensis
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Nuttall's Waterweed
Elodea nuttallii
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California Bottle Brush Grass
Elymus californicus
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Great Basin Wild Rye
Elymus cinereus
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Giant Wildrye
Elymus condensatus
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Canyon Prince Wild Rye
Elymus condensatus 'Canyon Prince'
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Gaviota Gray Giant Wild Rye
Elymus condensatus 'Gaviota Gray'
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Bottlebrush Squirreltail
Elymus elymoides
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Elymus elymoides var. brevifolius
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Elymus elymoides var. californicus
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Squirreltail
Elymus elymoides var. elymoides
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Blue Wildrye
Elymus glaucus
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Western Rye Grass
Elymus glaucus ssp. glaucus
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Blue Wildrye
Elymus glaucus ssp. virescens