Shrubs, erect to somewhat scandent, to 2 m tall, densely gray-brown stellate tomentose. Branches glabrescent. Petiole to 8 mm; leaf blade ovate, rarely ovate-oblong, 3-11 X 1-5.5 cm, densely gray-brown stellate tomentose, adaxially glabrescent, becoming black when dry, base broadly cuneate to subcordate, margin entire or irregularly sparsely serrate, apex acute to caudate-acute. Flowers solitary or sometimes paired. Pedicel to 8 mm. Bracteoles gray stellate tomentose, inserted at pedicel apex. Calyx campanulate, to 1.5 cm, gray stellate tomentose, inside sericeous, outside 10-veined; lobes 5, ca. 1/2 of calyx length, narrowly triangular-ovate, apex acuminate and apiculate. Corolla yellow, ca. 2.5 cm, gray-brown stellate tomentose except for tube base; lateral lobes of lower lip oblong-ovate, smaller than middle lobe; upper lobes obliquely ovate. Stamens included. Ovary base and style stellate tomentose. Capsule shorter than calyx. Seeds ca. 4.5 mm. Fl. Jun-Nov, fr. Dec-Jun.
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