Common plant names.

Below is a list of plant names beginning with the letter 'O', listed by common name. Click a letter of the alphabet to see a list of plants with common names beginning with that letter. Alternatively click here to see the plants listed alphabetically by botanic name.

Common names: ABCDEFGHIJKLMNOPQRSTUVWXYZ

Table: List of common names of plants along with their botanic/latin name equivalent.
Common name Botanic name
Oak, English oak, Common oak, pedunculate oak, European oak Quercus robur
Oat Avena sativa
Obovate peony, Mountain peony Paeonia obovata
Old lady Artemisia borealis
Old man cactus Cephalocereus senilis
Onion Allium
Onion, Ornamental onion Allium 'Globemaster'
Onion, Spring onion, salad onion, scallion Allium cepa
Oniongrass Romulea rosea
Ontario poplar Populus x candicans
Opposite-leaved pondweed Groenlandia densa
Orange birch bolete Leccinum versipelle
Orange Mint, Eau De Cologne Mint Mentha x piperita
Orange peel plant, Rainbow plant, Fish mint, Fish leaf Houttuynia cordata
Orange scented thyme Thymus fragrantissimus
Orange, Sweet orange, Valencia orange Citrus
Orchid Dendrobium
Orchid Oncidium
Orchid Orchidaceae
Orchid Pleione
Orchid Vanda
Oregano, Majoram, Wild marjoram Origanum vulgare
Oriental poppy, Poppy Papaver orientale
Ornamental blackberry Rubus biflorus
Ornamental kiwi fruit, Variegated-leaf hardy kiwi Actinidia kolomikta
Ornamental maize, Sweet corn, Sweetcorn Zea mays
Ornamental onion Allium hollandicum 'Purple sensation'
Ornamental onion Allium vineale
Ornamental pear Pyrus calleryana
Ornamental pepper, Capsicum Capsicum annuum 'Holiday Cheer'
Ornamental quince Chaenomeles speciosa
Ornamental quince, Chinese flowering quince, Japonica Chaenomeles speciosa
Ornamental raspberry, Thimbleberry Rubus odoratus
Ornamental winter kale Brassica oleracea
Oshima cherry Prunus speciosa
Osier, Common osier Salix viminalis
Oval leaf privet, Privet Ligustrum ovalifolium
Oval sedge Carex ovalis
Ox eye daisy Chrysanthemum leucanthemum
Ox-eye daisy Leucanthemum vulgare
Oxlip Primula elatior

Plant naming - botanic names >>