P. linearis

P. linearis may refer to:
 * Palafoxia linearis, a plant species in the genus Palafoxia
 * Persoonia linearis, a shrub species in the genus Persoonia
 * Petalonyx linearis, the narrowleaf sandpaper plant, a flowering plant species native to the deserts of eastern California, western Arizona and northwestern Mexico
 * Petrophile linearis, the Pixie mops, a shrub species endemic to Western Australia
 * Phacelia linearis, the linear-leaf scorpion-weed, a plant species in the genus Phacelia native to Canada
 * Philotheca linearis (A.Cunn. ex Endl.) Paul G.Wilson, a plant species in the genus Philotheca
 * Phlegethontia linearis, an extinct amphibian species from the Carboniferous and Permian periods of Europe and North America
 * Prasiola linearis, an algae species in the genus Prasiola
 * Pseudopanax linearis, a plant species in the genus Pseudopanax
 * Pleurothallis linearis, a plant species in the genus Pleurothallis native to Mexico
 * Pteris linearis, Poir., a fern species in the genus Pteris

Synonyms

 * Phlomis linearis, a synonym for Phlomis armeniaca, a plant species
 * Puccinia linearis, a synonym for Puccinia graminis, the stem rust, a cereal fungal disease