P. crispa

P. crispa may refer to:
 * Peperomia crispa, a plant species endemic to Ecuador
 * Philobrya crispa, a bivalve species in the genus Philobrya
 * Pimoa crispa, a spider species in the genus Pimoa
 * Prasiola crispa, an alga species in the genus Prasiola