- Narrow-leaf milkweed
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Picture 7 (female catkins)
- Narrow-leaved bedstraw
- Picture 1
- Picture 2
- Narrow-leaved willow
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Navarretia
- Needlegrass
- Nest-straw
- Picture 1
- Picture 2
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- Nettle-leaved goosefoot
- Picture 1
- Picture 2
- New Zealand spinach
- Picture 1
- Picture 2
- Nitgrass
- Nodding needlegrass
- Northern island bush poppy (Santa Cruz Island)
- Northern willow herb
- Picture 1
- Picture 2
- Nutsedge
- Picture 1
- Picture 2
- Picture 3
- Nuttall's lupine
- Picture 1
- Picture 2
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