Perennial herb, woolly at the base, with young branches bearing tuberculate hairs. Leaves are sessile to subsessile, linear-lanceolate, about 30 mm long and 3 mm wide, undulate to nearly dentate and bristly-hairy with tuberculate hairs. Inflorescences are lax, short, terminal and usually paired, forming spicate cymes. Calyx is bristly-hairy, about 3 mm long, with the tube as long as the lobes. Corolla is white, with a tube longer than the calyx and very small lobes. Flowers have included stamens with anthers inserted about the middle of the corolla tube and a short style. Fruits are nutlets, about 3 mm long, fused in two pairs, with an apparent separation line.