Bushy shrub up to c. 3 dm. tall or occ. more; branches ± erect or spreading, densely branched at tips. Ultimate branchlets (1)-1·5-2-(2.5) mm. diam., us. only slightly tetragonous; internodes 0.75-1·25 mm. long, us. entirely hidden; nodal joint well-marked. Lvs 1·5-2 mm. long, connate up to ⅓ length, deltoid to deltoid-oblong, very thick, strongly concavo-convex and us. spreading, rounded on back, tip ± subacute, weakly keeled, incurved and ± boat-shaped, thickened and flat inside. Spikes 4-8-fld. Bracts c. 2 mm. long, ± ovate, acute, keeled, weakly ribbed. Calyx 2-2.5 mm. long, anterior lobes ovate-oblong, obtuse or subacute with central rib, free for c. ⅔ length. Corolla-tube us. slightly < calyx. Capsule 2.5-3·5 × ± 2 mm., ± oval, subacute, > calyx.