Erect glabrous perennial to 70 cm high. Stems tetragonous with 4 sharp smooth ribs. Leaves sessile, elliptic to ovate or triangular, to 4 cm long, the lower much shorter than internodes, entire, papillose on margin. Flowers in umbels; bracts caducous; pedicels slender, c. 10 mm long, dark red, eglandular; bracteoles caducous. Sepals ovate, c. 3 mm long, glabrous but woolly-ciliate, dark red, caducous. Petals ovate, c. 7 mm long, rounded at apex, glabrous, pink (darker in centre). Stamens: filaments slender-terete, glandular-verrucose at apex, sparsely ciliate; anthers very minutely apiculate. Disc glabrous. Ovary glabrous; style terete or clavate, c. 1 mm long; stigma hemispherical, brown.
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