San Francisco Bay Area Plant Encyclopedia
- Origanum “Monterey Bay”
- Ornithogalum caudatum
- Ornithogalum dubium
- Ornithogalum fimbriatum
- Ornithogalum magnum
- Ornithogalum saundersiae
- Orostachys iwarenge
- Orostachys japonica
- Oroya peruviana
- Ortegocactus macdougallii
- Oscularia caulescens
- Oscularia deltoides
- Osteospermum (African Daisy)
- Osteospermum “3D Berry White”
- Osteospermum “3D Double Purple”
- Osteospermum “3D Sunburst”
- Osteospermum “4D Pink”
- Osteospermum “4D Violet Ice”
- Osteospermum “Astra Orange”
- Osteospermum “Astra Pink Spoon”
- Osteospermum “Astra Purple Spoon”
- Osteospermum “Bright Lights White”
- Osteospermum “Dusky Rose”
- Osteospermum “Kardinal”
- Osteospermum “Lavender”
- Osteospermum “Lemon Symphony”
- Osteospermum “Mara”
- Osteospermum “Margarita Blue Sunrise”
- Osteospermum “Margarita Cool Purple”
- Osteospermum “Margarita Orange Flare”