Habit: Metastelma inaguense grows as a glabrous, climbing vine to over 3 m in length. The leaves are oppositely arranged, to 7 cm, oblanceolate/obovate/linear, with an entire margin a obtuse/rounded, sometimes apiculate, leaf apex. The vegetation produces a milky sap.
The complete, perfect, actinomorphic flowers are arranged in axillary cymes. The calyx has 5, unfused, sepals with ovate lobes. The corolla has 5, papillose pubescent internally and glabrous externally, unfused white (with green bases) petals with linear to oblong lobes. There are 5, unfused stamens. Within the flower there are 5, white, attenuate appendages (crown) that arise from the corolla. The superior ovary has 2 locules with many ovules. The fruit is a follicle at maturity.
Habitat: Metastelma inaguense grows in coastal Dry Broadleaf Evergreen Formations – Forests/Shrublands (coppice) occurring on a sand substrate and Dunes.
Distribution: Metastelma inaguense is endemic to the Lucayan Archipelago, occurring throughout the islands.
Medicinal/Cultural/Economic usage: Metastelma inaguense is not known to be used medicinally in the Bahamian Archipelago.