Stem erect, slightly branched at the apex, pilose when young, glabrous and grey when old; leaves opposite, linear, obtuse, 4 lin. long, 1/3 lin. wide, at first slightly pilose, soon glabrous; flowers in the axils of the upper leaves; calyx-tube pubescent, 6 lin. long, slender curved; lobes oblong, acute, 1.5 lin. long, 0.3 lin. wide; petals 8, clavate, 4 lin. long, shorter than the surrounding hairs; anthers shortly apiculate; ovary oblong, 1 lin. long, glabrous; style filiform, 4 lin. long; stigma penicillate.
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