Shrubs or small trees, to 5 m tall, much branched. Petiole 0.5-2 cm; leaf blade elliptic-oblong to oblong, (5-)8-18 × (1-)3.5-5 cm, abaxially puberulent along veins, adaxially scabrous, secondary veins 5-7 on each side of midvein, base attenuate, margin undulate, apex acuminate to long acuminate. Cymes axillary, 1-4-flowered; peduncle 0.8-1.6 cm, 4-angled, pubescent; bracts small, caducous; bracteoles subulate, ca. 3 × 1 mm, caducous. Pedicel 0.8-1.5 cm. Calyx 7-8 mm; lobes linear-lanceolate, unequal, outside pubescent, inside gray tomentose. Corolla orange, ca. 1.8 cm, outside pubescent; tube ca. 1.3 cm, slightly curved; lower lip deeply 3-lobed, lobes ovate; upper lip 2-cleft. Stamens much exserted; filaments ca. 2.5 cm, glabrous; anther thecae oblong, parallel, extending beyond corolla lips; staminodes 2, small. Ovary glabrous; style ca. 2 cm, glabrous. Capsule 2.5-3 cm, glabrous, 8-seeded.
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A shrub or small tree. It grows 5 m tall. It has many branches. The leaves are narrowly oblong and 8-18 cm long by 3.5-5 cm wide. The flowers are in the axils of the leaves with 1-4 flowers in a group.
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