P. alba may refer to: Plumeria alba, a large evergreen shrub species native from Central America and the Caribbean Populus alba, the white poplar, a tree speciesnative from Spain and Morocco through central Europe to central Asia Prenanthes alba, the white rattlesnake root, a plant species Prosopis alba, the algarrobo blanco, a tree species found in Argentina Pseudofumaria alba, the white corydalis, a plant species
See also Alba (disambiguation)