Trees: Oakl - Orch (80)

Oakleaf Mountain Ash Ocala Anise (spp.) Ocala Anise Florida Sunshine Ochrosia Ocotillo: purpusii Octopus Plant: actinophylla (spp.) Octopus Plant: actinophylla Amate™ Octopus Tree (spp.) Octopus Tree Amate™ Ogeechee Lime Ogeechee Tupelo Ogi nagare Japanese Maple Ogura yama Fullmoon Maple: shirasawanum Ohio Buckeye (spp.) Ohio Buckeye Monticola Ohio Buckeye Sargentii Ohio Buckeye: glabra pallida Ohlendorfii Norway Spruce Oil Tree, Poonga Ojochin Oriental Cherry Okima Japanese Maple Oklahoma Oklahoma Redbud Oklahoma Redbud Oklahoma Oklahoma Redbud Texas White Okukuji nishiki Japanese Maple Okushimo Japanese Maple Old Gold American Holly Old Man Banksia Old Man Palm Old Man's Beard Old Man's Beard: virginicus Oldhamiana Norway Spruce Oleander Splendens Giganteum Oleander, Mexican Oleander, Yellow Oleaster: angustifolia Olifants River Euphorbia Olive Holly (spp.) Olive (spp.) Olive, Fortune's Sweet Olive, Fragrant (spp.) Olive, Holly Tea (spp.) Olive, Madagascar Olive, Russian Olive, Sweet (spp.) Olive, Tea (spp.) Olive, Texas Wild Olive, Wild Olive: americanus, Wild Oliver's Maple Olmsted Norway Maple Olympia Chinese Juniper Olympic Littleleaf Linden Ombu Omeo Grevillea Orange Berry Pittosporum (spp.) Orange Dream Japanese Maple Orange Jasmine Orange Thorn Orange Thorn: spinescens Orange Wattle Orange, Bitter (spp.) Orange, Hardy (spp.) Orange, Japanese Hardy (spp.) Orange, Osage (spp.) Orange, Osage Double O Orange, Satsuma Orange, Sweet (spp.) Orange, Sweet Dwarf Valencia Orange, Temple Orange, Trifoliat (spp.) Orchid Saucer Magnolia: soulangianahybrid Orchid Tree Orchid Tree, Hong Kong Orchid Tree, Purple Orchid Tree, Variegated (spp.) Orchid Tree, Variegated Candida Orchid Tree, White Orchid Tree: grandidieri Orchid Tree: spp.