Milktree is native to Puerto Rico and the Lesser Antilles. It reaches a height of 20 feet, with a trunk 6 inches in diameter. The trunk, branches and leaves secrete white latex when cut. The leaves are up to 15 inches long and are grouped toward the ends of the branches, they have many parallel veins and the borders rolled back. Flowers are about 2 inches wide and very fragrant. Fruits are pods up to 6 inches long by half an inch wide that generally appear in pairs and liberate many winged seeds. It flowers and produces fruits throughout the year. The generic name honors the French botanist Charles Plumier (1646-1704). The species name means white, in reference to the flowers. The species of frangipani frequently planted for ornament is P. rubra, whose leaves are wider and the flowers are white, yellow or red.

The photographed tree is west of the Physics Building and is the only member of the species in the campus.

Plumeria alba (Apocynaceae)