Ranunculus pusillus (low spearwort)

Elymus trachycaulus ssp. trachycaulus (slender wheatgrass)
Elymus villosus (hairy wildrye)
Elymus virginicus (Virginia wildrye)
Elymus virginicus var. halophilus (Virginia wildrye)
Elymus virginicus var. virginicus (Virginia wildrye)
Elymus vulpinus (Rydberg's wildrye)
Elymus x pseudorepens
Empetrum nigrum (black crowberry)
Epifagus virginiana (beechdrops)
Epilobium anagallidifolium (pimpernel willowherb)
Epilobium angustifolium
Epilobium montanum
Epilobium palustre (marsh willowherb)
Epilobium parviflorum
Epilobium tetragonum
Epimedium alpinum
Epimedium colchicum
Epipactis helleborine
Epiphyllum crenatum
Equatorial Guinea
Equisetum arvense
Equisetum fluviatile
Equisetum laevigatum (smooth horsetail)
Equisetum palustre
Equisetum palustre (marsh horsetail)
Equisetum pratense (meadow horsetail)
Equisetum scirpoides (dwarf scouringrush)
Equisetum sylvaticum (woodland horsetail)
Equisetum telmateia

Image of Ranunculus pusillus (low spearwort) 1
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 106.