Podocarpus costalis, locally known as arius,[2] is a species of conifer in the family Podocarpaceae.

[1] This plant grows in island scrub, low forest, or in a limestone bluff or sea stack habitat, growing at elevations from sea level to nearly 300 meters.

[2] One threat to the survival of wild populations is overcollecting for horticulture; this practice is illegal throughout its native range.

[1] Podocarpus costalis is a small, shrubby tree, usually ranging from one to five meters high.

[4] The plant is endangered largely on account of its minuscule area of occupancy of about 24 square kilometers.