Fls 4-merous, each closely subtended by 3 pairs of decussate bracts simulating a cal; sep distinct, petaloid, scarious, much exceeding the tubular, deeply 4-lobed cor; stamens 8, included, connivent; anthers lance-subulate, each with 2 short basal spurs, the pollen sacs distinct for more than half their length above, opening longitudinally nearly to the base; stigma deeply 4-lobed; capsule 4-valved, enclosed by the persistent perianth; branched shrubs with small, opposite, decussate lvs and small, white to pink or rose-purple fls in ± secund racemes. Monospecific.
Small evergreen shrub. Lvs opposite, sessile, scale-like, 4-ranked. Fls in bracteate, terminal spikes or sometimes panicles, 4-merous. Calyx of free petaloid sepals, > corolla, persistent. Corolla deeply lobed, campanulate, persistent, scarious. Stamens 8, included; anthers acuminate, with 2 reflexed dorsal appendages, opening by elongated slits. Fr. a septifragal capsule, invested in the persistent perianth. Seeds few.