Rhynchelmis orientalis, a freshwater worm species found on Hokkaidō, Japan
Typha orientalis | Platanus orientalis | Fossils of ''S. aurorae'' (left) and ''S. orientalis'' (right) at the National Museum of Nature and Science | William (marcha orientalis) | Trema orientalis | Rhynchelmis orientalis | Orientalis Ecclesiae | Nauclea orientalis | Hyacinthus orientalis | Fagus orientalis | Crataegus orientalis |
Fagus orientalis, the Oriental beech, a deciduous tree species found from northwest Turkey east to the Caucasus and Alborz Mountains
In ssuk injeolmi (쑥인절미) and surichwi injeolmi (수리취인절미) are ssuk (Artemisia princeps var. orientalis) and surichwi (Synurus deltoides (AIT.) NAKAI) added.
Vibrio orientalis, a Gram-negative bacterium species in the genus Vibrio