Branchlets glabrous. Leaves 3.5-5 mm long, alternate, ascending, slightly incurved towards the apex, subimbricate, lanceolate, subacute, shortly cuneate at the base, concave and glabrous above, pilose-ciliate, conspicuously keeled and with scattered glands beneath, tubercled and pilose on the keel. Flowers in terminal clusters. Peduncles 1-2 mm long, glabrous, with bracteoles at or near the apex. Calyx glabrous. Sepals 2.5 mm long, oblong-lanceolate, obtuse, concave above, obtusely keeled beneath. Petals 4-6 mm long; blade obovate, obtuse; claw 1.5 times or almost twice as long, filiform, glabrous, or sparsely pilose on the lower half. Stamens glabrous. Staminodes 2.75-3.25 mm long, linear, tapering towards both ends, pilose at the middle. Ovary pilose on the apex, with 3 carpels bearing linear-oblong pilose processes. Style glabrous. Fruit with reticulate ridges.
More
Single-stemmed, rigid, harsh-textured shrublet to 25 cm. Flowers in dense heads, white. Fruits 3-chambered.