Edible uses
Food, drinks, and flavourings.
5,919 plants
- Ophrys iricolor
- Ophrys luteaYellow Bee Orchid
- Ophrys scolopaxWoodcock Orchid
- Ophrys sphegodesEarly Spider Orchid
- Ophrys tenthrediniferaSawfly Orchid
- Ophrys vernixia
- Oplopanax horridusDevil's Club
- Oplopanax japonicus
- Opuntia compressaEastern Prickly Pear
- Opuntia erinaceaMojave Prickly Pear
- Opuntia ficus-indicaPrickly Pear
- Opuntia fragilisPrickly Pear
- Opuntia howeyi
- Opuntia imbricataTree Chola
- Opuntia littoralisWestern Prickly Pear
- Opuntia macrorhizaTwist-Spine Prickly Pear
- Opuntia microdasysBunny Ears
- Opuntia phaeacanthaBastard Fig
- Opuntia polyacanthaPlains Prickly Pear
- Opuntia ramosissimaBranched Pencil Cholla
- Orchis coriophoraBug Orchis
- Orchis italica
- Orchis laxifloraMarsh Orchis
- Orchis masculaEarly Purple Orchis
- Orchis militarisMilitary Orchis
- Orchis morioGreen-Winged Orchid
- Orchis ustulataDark-Winged Orchis
- Oreomyrrhis hookeri
- Origanum compactum
- Origanum dictamnusDittany Of Crete
- Origanum glandulosum
- Origanum isthmicum
- Origanum majoranaSweet Marjoram
- Origanum onitesPot Marjoram
- Origanum syriacumBible Hyssop
- Origanum virens
- Origanum vulgareOregano
- Origanum vulgare hirtumGreek Oregano
- Origanum x hybridum
- Origanum x majoricumHardy Marjoram
- Orixa japonica
- Ornithogalum narbonenseStar Of Bethlehem
- Ornithogalum pyrenaicumBath Asparagus
- Ornithogalum umbellatumStar Of Bethlehem
- Orobanche ammophylaLie Dang
- Orobanche californicaCalifornia Broomrape
- Orobanche cernua
- Orobanche fasciculataCancer Root
- Orobanche grayana
- Orobanche ludovicianaBroom Rape
- Orobanche pinorum
- Orobanche tuberosaGround Cone
- Orobanche uniflora
- Orogenia linearifoliaIndian Potato
- Orontium aquaticumGolden Club
- Orthilia secundaSidebells Wintergreen
- Orychophragmus violaceus
- Oryzopsis asperifoliaMountain Rice
- Osmanthus americana
- Osmanthus fragransFragrant Olive
- Osmorhiza aristata
- Osmorhiza chilensis
- Osmorhiza claytoniiWoolly Sweet-Cicely
- Osmorhiza longistylisAniseroot
- Osmorhiza obtusa
- Osmorhiza occidentalisWestern Sweet-Cicely
- Osmunda cinnamomeaCinnamon Fern
- Osmunda claytonianaInterrupted Fern
- Osmunda japonicaZenmai
- Osteomeles obtusifolia
- Osteomeles schwerinae
- Osteomeles subrotunda
- Oxalis acetosellaWood Sorrel
- Oxalis articulataPink Sorrel
- Oxalis barrelieri
- Oxalis bifida
- Oxalis corniculataYellow Sorrel
- Oxalis corymbosaLilac Oxalis
- Oxalis deppeiIron Cross Plant
- Oxalis enneaphyllaScurvy Grass
- Oxalis europaea
- Oxalis exilisLeast Yellow Sorrel
- Oxalis frutescens
- Oxalis lasiandra
- Oxalis magellanica
- Oxalis montanaMountain Wood Sorrel
- Oxalis oreganaRedwood Sorrel
- Oxalis pes-capraeBermuda Buttercup
- Oxalis strictaYellow Wood Sorrel
- Oxalis tetraphylla
- Oxalis triangularis
- Oxalis tuberosaOca
- Oxalis violaceaViolet Wood Sorrel
- Oxydendrum arboreumSorrel Tree
- Oxyria digynaMountain Sorrel
- Oxytropis lambertiiCrazy Weed
- Pachyphragma macrophylla
- Pachyrhizus ahipaAhipa
- Pachyrhizus tuberosusJicama
- Pachysandra terminalisJapanese Spurge