Semi-prostrate perennial herb, up to 25 cm. high; branches 4-angled, lower ones bare, upper ones densely foliate and minutely red-lined.. Leaf-lamina elliptic-lanceolate, up to 9.5 cm. long and 4 cm. wide, acuminate, base cuneate, glabrous; midrib and 2 pairs of longitudinal nerves conspicuous beneath.. Inflorescences 2–5-flowered axillary and terminal subsessile umbelliform cymes; pedicel ± 5 mm. long.. Calyx-tube obconical, 4 mm. long, 5 mm. in diameter, glabrous; lobes shortly ligulate, 2 mm. long.. Petals trapeziform, long-acuminate, 18 mm. long, 7 mm. wide, red.. Anthers 2 mm. long; posterior spur ± 1.5 mm. long; filaments 4 mm. long.. Fruiting calyx accrescent and woody.. Fig. 14.
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