dwarf, densely much branched; branches somewhat trigonous, glabrous; leaves 3-nate, adpressed or imbricate, 1/2–1 1/4 lin. long, 1/4– 1/3 lin. broad, oblong or linear-oblong, obtuse, very shortly petiolate, minutely ciliolate or slightly scabrid on the margins, otherwise glabrous; umbels terminal, 3–9-flowered; pedicels 1–1 1/4 lin. long, glabrous, bracteate near the middle; bracts 1/4– 1/2 lin. long, linear or the lower enlarged upwards, glabrous, minutely ciliate; calyx about 1/2 lin. long, 4-lobed to below the middle, rigid, glabrous, minutely ciliate and sometimes with glands on the margins of the oblong, lanceolate or deltoid, acute or obtuse lobes; corolla 1 2/3 (very rarely 1 3/4–2) lin. long, 3/4–1 lin. in diam., tubular, 4-angled, very shortly 4-lobed, glabrous, bright rosy purple; lobes erect, rounded, broader than long; stamens 4; anthers partly exserted, 1/2 lin. long, bipartite nearly to the base, oblong, with subparallel sides, not constricted above the short subparallel or slightly divergent spurs, scabrid, dark brown or blackish, deciduous; ovary 4-angled, glabrous; ovules 3–4 in each cell; style 1 1/3–2 lin. long, dilated at the base and articulated to the ovary, much exserted, slightly thickened at the apex; stigma simple. null