Much branched evergreen glabrous shrub or tree up to 12 m. high.. Young stems 4-angled but soon becoming woody and terete.. Leaves lanceolate, or oblong-lanceolate, ranging from 10 x 4 mm. to 50 x 12 mm., acute, narrowed to a rather broad clasping base, furnished with 3 or 5 veins running from the base to near the apex and with numerous longitudinal, linear glands parallel with the midrib.. Flowers solitary at the ends of the branches.. Sepals ± unequal, ovate or ovate-lanceolate, subacute, without black opaque marginal dots.. Petals ascending in anthesis so that the flower appears cup-shaped, 2.7–3.5 cm. long, 1.6–2.5 cm. wide, orange-yellow with bright red outside, without black marginal dots.. Stamens in 5 bundles of about 27 each.. Styles 5, united in the lower part.. Capsule 5-valved.. Leaves lanceolate, or oblong-lanceolate, ranging from 10 × 4 mm. to 50 × 12 mm., acute, narrowed to a rather broad clasping base, furnished with 3 or 5 veins running from the base to near the apex and with numerous longitudinal, linear glands parallel with the midrib.
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