P. spinosa

P. spinosa may refer to:
 * Paa spinosa, a frog species
 * Pallenis spinosa, a flowering plant species in the genus Pallenis
 * Panlongia spinosa, an extinct Cambrian arthropod species in the genus Panlongia
 * Phylloxylon spinosa, a legume species
 * Pochyta spinosa, a jumping spider species in the genus Pochyta
 * Prostanthera spinosa, a mintbush species in the genus Prostanthera
 * Protosagitta spinosa, a predatory marine worm species in the genus Protosagitta
 * Prunus spinosa, a deciduous large shrub species
 * Pseudomonas spinosa, a Gram-negative soil bacterium species
 * Pteroneta spinosa, a sac spider species in the genus Pteroneta
 * Pultenaea spinosa, a flowering plant species in the genus Pultenaea
 * Pyrenecosa spinosa, a wolf spider species in the genus Pyrenecosa

Synonyms

 * Poinciana spinosa, a synonym for Caesalpinia spinosa, the tara, a tree species native to Peru