Species Index
The following list contains all the plants currently in the RCP database.
Species/Cultivar
- Oenothera fruticosa subsp. glauca 'Sonnenwende'
- Oenothera macrocarpa Nutt.
- Oenothera missouriensis
- Olea europaea L.
- Olsynium junceum (e.Mey. ex C.Presl) Goldblatt
- Omphalodes cappadocica 'Cherry Ingram'
- Ononis repens L. subsp. procurrens
- Onychium japonicum
- Onychium japonicum 'Dali'
- Ophiopogon planiscapus Nakai
- Ophiopogon planiscapus 'Kokuryu'
- Opuntia cochenillifera (L.) Mill.
- Opuntia humifusa (Raf.) Raf.
- Opuntia robusta H. L. Wendl. ex Pfeiff.