Plants that Start with 'O'
Browse all plants whose common or botanical names begin with the letter "O"—from popular houseplants to rare species
Find Plants by Letter
Old Lady Cactus
Mammillaria hahniana
October Daphne
Hylotelephium sieboldii
Orpine
Hylotelephium telephium
Orange jasmine
Murraya paniculata
Olive tree
Olea europaea
Oriental paperbush
Edgeworthia chrysantha
Oakleaf hydrangea
Hydrangea quercifolia
Old Man of the Mountain
Oreocereus trollii
oyster mushroom
Pleurotus ostreatus
oldfashioned weigela
Weigela florida
Oriental poppy
Papaver orientale
okra
Abelmoschus esculentus
Ovens wattle
Acacia pravissima
orange wild tulip
Tulipa orphanidea
orange wattle
Acacia saligna
orange clock vine
Thunbergia gregorii
orangefruit horse-gentian
Triosteum aurantiacum
orange mullein
Verbascum phlomoides
orange wall lichen
Xanthoria parietina
Orange polypore
Trametes sanguinea
Orange Rock Hair
Trentepohlia aurea
onyxflower
Achyronychia cooperi
Orange Hoarypea
Tephrosia elongata