The type specimen was collected in 1970 by Jean Marie Bosser from dry forest undergrowth near Tsaramasao, 20 km (12 mi) south of Sakaraha.

The specific epithet longebracteata refers to the long bracts found along the inflorescence.

The inflorescence has a series of five to seven narrow, linear bracts, which are pale yellow stained with green spots.

The inflorescence is a simple raceme that has about 20 to 25 flowers with green sepals and petals with purple veins.

[2] Oeceoclades longebracteata is a terrestrial species found growing on gritty sand in clear undergrowth in deciduous forests.