Apparently a small straggling shrub, with hoary tomentulose branches; leaves 3-nate, erect, incurved, often fasciculate, linear, obtuse, rather thick, sulcate, uniformly covered with a fine short hoary or grey tomentum, becoming at length glabrous, 2 1/2-3 lin. long; flowers 3-nate on short lateral branchlets, at length cernuous; pedicels white-pubescent, 2-3 lin. long; bracts remote, small; sepals lanceolate, acuminate, keeled, rigid, tomentulose, about 1 1/2 lin. long; corolla suburceolate, only slightly contracted at the throat, glabrous ('white', Marloth) about 1 1/2 lin. long; segments rounded, very short, slightly spreading, from 1/6-1/4 the length of the tube; filaments slender, nearly twice as long as the anthers; anthers included, lateral, cuneate-oblong, somewhat rough, under 1/2 lin. long, crested at the base; pore more than 1/2 the length of the cell; crests ovate-lanceolate, acuminate, distantly dentate, thin, hyaline, 2/3 the length of the cells; style included, short, dilated at the base; stigma capitate; ovary densely woolly.
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Erect shrublet to 1 m. Flowers small, calycine, ovoid, white.