Branch nearly 1 ft. long; branchlets nearly filiform, quite glabrous, internodes 1-2 lin. long, leaf-scars tooth-like; leaves alternate, erect or slightly spreading, linear-lanceolate, acute, 4-6 lin. long, 0.5-1 lin. wide, flat or with recurved margins, ashy-green, glabrous, 1-nerved, upper leaves nearly verticillate; flowers surrounded at the base with white hairs; calyx 6-7 lin. long, glabrous; tube slender, almost filiform at the middle, narrowly funnel-shaped above; lobes ovate-or ovate-oblong, acuminate, 1.5 lin. long, sparingly hairy outside; petals 8, rather fleshy, oblong, obtuse, lin. long, inserted in pairs; anthers half as long as the petals, the upper exserted.