It is a pubescent white-bristly perennial plant with a woody base. Stems are terete, much branched from the base, procumbent or ascending. Leaves are linear-lanceolate, with acute or obtuse apex, revolute margins, and tapering base. Flowers are sessile or subsessile, in 1 rank, with white, hypocrateriform corolla and arranged in  terminal, forked spike-like, dense cymes. The fruit is subglobose and composed of 4 Nutlets which are free or connate in pairs; all of them are fertile or 2 of them are abortive; the dorsal surface is with or without dermal appendages and with acute apex.