Common names: N
- naked viburnum
- nannyberry
- naranjilla
- narcissus-flowered anemone
- Narihira bamboo
- narrow-leaf penstemon
- narrow-leafed ash
- narrow-leaved sundrops
- narrow-leaved valerian
- narrowleaf beard tongue
- narrowleaf hawkweed
- narrowleaf plantain
- narrowleaf zinnia
- nashi
- nashi pear
- nasturtium
- Natal bottlebrush
- Natal coral tree
- Natal lily
- Natal plum
- necklace orchid
- nectarine
- neep
- Nepal cinquefoil
- Nepal poppy
- nest spruce
- net-leaved willow
- nettle leaf giant hyssop
- nettle-leaved bellflower
- nettle-leaved mullein
- New England aster
- New Guinea creeper
- New Guinea impatiens
- New York aster
- New Zealand burr
- New Zealand Christmas tree
- New Zealand flax
- New Zealand iris
- New Zealand sedge
- New Zealand spinach
- New Zealand tea
- night-blooming jasmine
- nightshade
- Nikko maple
- nine-leaf biscuitroot
- nine-leaf desert parsley
- ninebark
- nipple cactus
- noble dendrobium
- noble fir
- nodding beggarticks
- nodding onion
- nodding Star-of-Bethlehem
- nodding virgin's bower
- noni
- Nootka rose
- Nordmann fir
- Norfolk Island araucaria
- Norfolk Island hibiscus
- Norfolk Island pine
- northern blazing star
- northern buckler fern
- northern chainpod
- Northern Christmas lily
- northern dropseed
- northern grass tree
- northern Labrador tea
- northern maidenhair fern
- northern red oak
- northern water hemlock
- northern wolfsbane
- Norway maple
- Norway spruce
- notro
- NSW Christmas bush
- nutmeg
- nutmeg bush