- euphorbia
- evergreen
- everlasting
- eye
- excurrent
- exocarp
- exorpore
- farina
- fasciated
- fascicle
- fasciculate
- fasciculation
- fascicule
- extrorse
- fascicled
- fascicular
- fasciculated
- fasciculus
- fastigiate
- feather-grass
- fecund
- fecundity
- fennel
- fenugreek
- fescue
- fig
- fig-tree
- filament
- filbert
- feet
- female
- fen-berry
- fern
- fibre
- fibrillate
- finger-fern
- fir-tree
- ferula
- fiber
- fibril
- fibrillated
- fig-wort
- fir
- five-finger
- flag
- flageolet
- flamboyant
- flax
- floret
- flower-head
- fly-trap
- flexouse
- floccose
- foliate
- foliole
- follicular
- foot
- fly-catcher
- flowered
- foliage
- follicle
- footstalk
- forsythia
- foxglove
- foxtail
- frangipane
- frangipani
- fraxinella
- french bean
- fritillary
- frondage
- fruitlet
- frustule
- frutices
- fucus
- frof-spawn
- frond
- fuci
- fucoid
- frutescent
- fruticose
- fulcrum
- fulcra
- fumitory
- fustic
- frutex
- fuchsia
- funiculi
- gadget
- garlic
- funiculus
- furfuraceous
- fuzz-ball
- galeate
- gamopetalous
- gamp
- funicular
- furze
- gall
- gametophyte