O. spinosa
# O. spinosa

O. spinosa may refer to:

* Ochrotrichia spinosa, a microcaddisfly species in the genus Ochrotrichia
* Octonoba spinosa, a non-venomous spider species in the genus Octonoba
* Oncoba spinosa, a flowering plant species
* Onigocia spinosa, a fish species in the genus Onigocia
* Ononis spinosa, a medicinal plant species
* Ophellantha spinosa, a plant species in the genus Ophellantha
* Opopaea spinosa, a spider species in the genus Opopaea and the family Oonopidae
* Ovalia spinosa, a harvestman species in the genus Ovalia
