| Botanical Name |
Authority |
| Gaiadendron spp. |
Parasitic |
| Galactia smallii |
ESA-E |
| Galega officinalis |
NW |
| Galipea spp. |
NAPPRA |
| Galium buxifolium |
ESA-T |
| Galium californicum ssp. sierrae |
ESA-E |
| Gaoligongshania spp. |
NAPPRA |
| Gardenia brighamii |
ESA-E |
| Gardenia mannii |
ESA-E |
| Gardenia remyi |
ESA-E |
| Gaura neomexicana ssp. coloradensis |
ESA-T |
| Geijera spp. |
NAPPRA |
| Geleznowia spp. |
NAPPRA |
| Gelidocalamus (See: Indocalamus) spp. |
NAPPRA |
| Geocarpon minimum |
ESA-T |
| Geocaulon spp. |
Parasitic |
| Geranium arboretum |
ESA-E |
| Geranium hanaense |
ESA-E |
| Geranium hillebrandii |
ESA-E |
| Geranium kauaiense |
ESA-E |
| Geranium multiflorum |
ESA-E |
| Gerardia (See: Agalinus) spp. |
NW |
| Gerardiina spp. |
Parasitic |
| Gesneria pauciflora |
ESA-T |
| Geum radiatum |
ESA-E |
| Ghikaea spp. |
Parasitic |
| Gigantochloa spp. |
NAPPRA |
| Gilia tenuiflora ssp. arenaria |
ESA-E |
| Gilia tenuiflora ssp. hoffmannii |
ESA-E |
| Ginalloa spp. |
Parasitic |
| Gjellerupia spp. |
Parasitic |
| Glaziophyton spp. |
NAPPRA |
| Gleadovia spp. |
Parasitic |
| Globimetula spp. |
Parasitic |
| Glutago (See: Oryctanthus) spp. |
NW |
| Glycine max |
FSA-A |
| Glycosmis spp. |
NAPPRA |
| Gnaphalium affine |
NAPPRA |
| Goetza elegans |
ESA-E |
| Gomphrena celosioides |
NAPPRA |
| Gonocalyx concolor |
ESA-E |
| Gossypium spp. |
FSA-A |
| Gouania hillebrandii |
ESA-E |
| Gouania meyenii |
ESA-E |
| Gouania vitifolia |
ESA-E |
| Graderia spp. |
Parasitic |
| Graptopetalum bartramii |
ESA-T |
| Greslania spp. |
NAPPRA |
| Grindelia fraxinipratensis |
ESA-T |
| Guadua spp. |
NAPPRA |
| Guizotia abyssinica |
Treatment |
| Gymnocactus (= Turbinicarpus) spp. |
CITES |
| Gymnoderma lineare |
ESA-E |
