Shrub 1-3 m tall;  mature branches reclining, terete, smooth, glabrate, reddish-brown;  twigs subterete, complanate, bluntly angled, pilose with white trichomes.  Leave ovate, oblong-elliptic or rarely obovate, 6-14.5 x 3.2-6.7 cm, basally rounded or broadly truncate, usually cordate, apically (sometimes abruptly) sharply short-acuminate, weakly pilose along nerves above, pilose-hispid along nerves and onto lamina beneath;  5-7-plinerved, midrib conspicuously thickened and sometimes raised through proximal 1-2 cm otherwise impressed above and raised beneath, lateral nerves impressed above and raised beneath, veinlets conspicuous, raised on both surfaces or sometimes impressed above then causing leaves to be bullate;  petiole subterete sometimes flattened adaxially, rugose, 5-10 mm long and 2-3 mm diam.  Inflorescence 15-20-flowered;  rachis subterete, bluntly angled, short-pilose, 3-10 cm long and ca. 3-6 mm diam, provided along length (although sometimes obscure) with deciduous, spherical, light tan glands ca. 0.1-0.2 mm diam.;  floral bracts more or less muricate, ovate-oblong, 25-37 x 15-18 mm, apically rounded, glabrous or ciliate and appressed short-pilose at distal tip, pink to deep rose when fresh (fide label data);  pedicels subterete, sometimes sharply ribbed, densely hispidulous, 6.5-9 mm long, with few (sometimes obscure) spherical glands scattered along length or sometimes clustered near tip at articulation with calyx;  bracteoles located near base of pedicel, oblong to linear-lanceolate, to 3 x 1 mm, glabrous or sparsely hispidulous along midrib dorsally, marginally with spherical to more or less oblong glands in distal half these often fusing at apex.  Flowers:  calyx hispid-pilose, 7-8 mm long;  hypanthium cylindric, more or less rugose, 10-ribbed, 2.5 mm long and 3.5-4 mm diam., basally apophysate;  limb erecto-patent, ca. 4-5 mm long;  lobes broadly triangular, 2-2.5 mm long and 2.5-3 mm broad, erect after anthesis, marginally bearing stout, thickened more or less oblong fimbriae which fuse distally forming a more or less continuous oblong callose gland ca. 1 mm long on each lobe margin but these not contiguous at tip;  sinuses obtuse;  corolla cylindric, densely short-pilose, 20-22 mm long and 6-7 mm diam., white when fresh (fide label data), lobes ovate-oblong, obtuse, 2 mm long;  stamens 19-20 mm long;  filaments pilose ventrally above middle, alternately ca. 4 mm and 7 mm long;  anthers alternately 17-18 mm and ca. 14 mm long;  thecae alternately 6-7 mm and 4-5 mm long.  Berry not seen.

    Distribution (Map).  Endemic to Cerro de la Neblina (Amazonas, Venezuela), where it occurs in scrub forest and along the upper escarpment slopes, at elevations of 1500-1700 m.  It has been collected in flower in December and January.  Although the Cerro de la Neblina is a very remote and isolated mountain region, any disturbance there could easily threaten the species;  therefore, this species should be considered  Rare and endangered.