Erect, somewhat slender, entirely glabrous, 12-18 in. high; branches mostly virgate, often covered with a white papery semitransparent and deciduous or separable epidermis; leaves 4-nate (we have seen none 3-nate as mentioned by Bentham), mostly erect and imbricate, rarely spreading, linear, blunt, faintly sulcate, 1 1/2-2 lin. long; flowers 4-nate, often clustered; pedicels about 1 lin. long; bracts remote, small; sepals ovate to lanceolate, acuminate, keeled, very concave, scarious-edged, 1 lin. long or less; corolla cyathiform, or sometimes (probably in immature flowers) somewhat obconic, widened or not contracted at the mouth, subtetragonous, white, about 1 1/2 lin. long; segments erect or scarcely spreading, about 1/2 as long as the tube; anthers elliptical or oblong, smooth, glabrous, about 1/5 lin. long, aristate; pore about 2/3 as long as the cell; awns subulate, entire or nearly so, about 1/2 as long as the cell; style included, slender; stigma capitellate; ovary glabrous.
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Erect shrublet to 50 cm. Flowers small, narrowly cup-shaped, white.