Habit: Spermacoce thymifolia grows as a scabrously pubescent perennial up to 40 cm in height spreading to form mounds/mats. The leaves are arranged oppositely with triangular stipules between the petioles. The recurved leaves are linear up to 2.5 cm long (typically shorter), with an acute leaf apex and an entire margin with scabrous pubescence.
The, actinomorphic, perfect, complete, solitary flowers occur in the leaf axils and terminate branches. A stipular sheath subtends the flowering “head” with many setae. The calyx has 4 unfused, pubescent ovate – lanceolate, lobed sepals. The corolla has 4 fused pubescent white petals that form a short tube and each slightly recurved lobe with a mucronate apex. There are 4 stamens that are fused to the perianth forming a hypanthium. The ovary is inferior with 1 locule and many ovules. The fruit is a capsule at maturity.
Habitat: Spermacoce thymifolia grows in Dunes, Coccothrinax Woodlands, and in sandy coastal shrublands.
Distribution: Spermacoce thymifolia is endemic to the Lucayan Archipelago occurring in the southern islands.
Medicinal/Cultural/Economic usage: Spermacoce thymifolia is not known to be used medicinally in the Bahamas.