An undershrub branched from the base. Branches decumbent or ascending, 4–12 in. long, leafy and densely pubescent above, more or less leafless and subglabrate below, spiny chiefly below; hairs pale-subfulvous, glandular, spreading; spines 1/2–1 in. long, straight. Leaves linear-oblanceolate, 1–1 1/2 in. long, 1 1/5–2 lin. broad, pointed at the apex, much attenuated at the base, subscabrid, densely glandular-hairy. Flowers solitary, subsessile. Bracts 1 1/2–3 lin. long, linear, hairy. Calyx 1/6– 1/4 in. long, deeply toothed; teeth linear, hairy outside, glabrous inside. Corolla 2/3– 3/4 in. long, membranous, veined, glandular-hairy outside. Fertile anthers 2, somewhat hispid or ciliate. Style nearly 1/2 in. long. Capsule 2 lin. long, shortly hairy. Young seeds papillose.
