Glabrous except for young shoots, inflorescences and flowers shortly red-brown tomentose. Leaves alternate or subopposite; lamina lanceolate to elliptic, 4-12(-20) by l-3(-7) cm, cuneate at the base to a petiole 10-15 mm long, acuminate to shortly attenuate and acute at the apex, lustrous above, more or less dull below; venation pinnate with the midrib distinct on both sides and the many parallel secondary and tertiary veins obscure but forming a finely striate pattern above. Inflorescences at the nodes, a 13-to 25-flowered spike; axis 45-55 mm long; bracts simple, rounded, c. 1 mm long. Ovary cylindric, 3-4 mm long; calyx limb erect, c. 1 mm long. Corolla in mature bud 5-merous, 5-7 mm long, sometimes slightly inflated up to 2 mm wide just above the base, narrowed upwards, acute at the apex, mostly red, rarely yellow to brown. Anther c. 2 mm long, acute, about half as long as the free part of the filament. Style 4-6 mm long, reaching to the top of the anthers, uniformly slender throughout and lacking a constriction; stigma capitate, slightly wider than the style.
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