Field bindweed – Horseweed
- Weeds: Field bindweed (Wild morningglory) – Convolvulus arvensis
- Weeds: Field pennycress (Fanweed) – Thlaspi arvense
- Weeds: Flixweed – Descurainia sophia
- Weeds: Foxtail (Green, Yellow, Bristly) – Setaria spp.
- Weeds: Garden loosestrife – Lysimachia vulgaris
- Weeds: Giant hogweed – Heracleum mantegazzianum
- Weeds: Goldenrods – Solidago spp.
- Weeds: Ground ivy – Glechoma hederacea
- Weeds: Groundsel, common – Senecio vulgaris
- Weeds: Hawkweeds – Hieracium spp.
- Weeds: Hedge bindweed – Calystegia sepium (Convolvulus sepium)
- Weeds: Henbit – Lamium amplexicaule
- Weeds: Herb Robert (Robert geranium, stinky Bob) – Geranium robertianum
- Weeds: Horsetails (Scouringrush) – Equisetum spp.
- Weeds: Horseweed (Marestail) – Conyza canadensis