San Francisco Bay Area Plant Encyclopedia
- Graptoveria “Opalina”
- Greenovia aurea
- Greenovia dodrentalis
- Grevillea “Bonfire”
- Grevillea “Canberra Gem”
- Grevillea “Coastal Gem”
- Grevillea “Jade Mound”
- Grevillea “King’s Celebration”
- Grevillea “King’s Fire”
- Grevillea “King’s Rainbow”
- Grevillea “Long John”
- Grevillea “Magic Lantern”
- Grevillea “Penola”
- Grevillea “Pink Pearl”
- Grevillea “Red Hooks”
- Grevillea “Ruby Clusters”
- Grevillea sericea
- Grusonia invicta
- Gymnocalycium
- Gymnocalycium amerhauseri
- Gymnocalycium anisitsii
- Gymnocalycium anisitsii ssp. damsii
- Gymnocalycium baldianum
- Gymnocalycium bodenbenderianum
- Gymnocalycium bruchii
- Gymnocalycium buenekeri
- Gymnocalycium denudatum
- Gymnocalycium eurypleurum
- Gymnocalycium friedrichii
- Gymnocalycium horstii