O

Ocimum sanctum (Tulsi)

Octopus vulgaris

Odocoileus virginiana borealis (White Tailed Deer)

Oenanthe crocata

Okoubaka

Olea europaea

Oleander

Oleum jecoris aselli

Olibanum sacrum (Boswellia serrata) (Frankincense)

Oniscus asellus

Onosmodium virginianum

Ophioglossum lustigianum

Ophiopinna elegans fossil

Opium

Opuntia

Orange (A. Wauters)

Orange (Guild)

Origanum majorana

Orthotrichum affine

Oryza sativa

Ova branta canadensis

Ovum chelydra serpentina

Oxygenium

Oxyrrhynchium hians

Oxytropis lambertii

Oxyuranus scutellatus

Oyster

Ozone