Herbs, creeping; stems drying compressed, striate or shallowly sulcate, pilosulous. Leaves in subequal pairs; petiole 1-1.5 cm, pilosulous; blade drying thinly papery or membranous-papery, leaden gray or sometimes green adaxially, pale and puncticulate abaxially, ovate, elliptic-oblong, or lanceolate, 3.5-11 × 1.8-4.5 cm, adaxially subglabrous or sparsely puberulent, abaxially pilosulous along principal veins, base cuneate to rarely subrounded, margins flat or undulate, apex acute or obtuse then acuminate; secondary veins 10-15 pairs; stipules persistent, broadly triangular then abruptly contracted, 4-5 mm, caudate-acuminate. Inflorescences congested-cymose, many flowered, densely pilosulous, branched to 1 order; peduncle shorter than 1 cm; axes very short, helicoid; bracteoles quickly caducous, ca. 0.3 mm. Flowers distylous, subsessile or with pedicels to 1 mm. Calyx with hypanthium subglobose to subturbinate, ca. 1.1 × 1.5 mm, 5-ribbed, hispidulous; lobes linear, 1.4-1.6 mm, with line of stiff hairs. Corolla drying orange-yellow, tubular-funnelform, hirtellous outside; tube ca. 5 mm, with villous ring in throat; lobes subovate, ca. 2 mm, acute, dorsally with horn ca. 1.5 mm. Capsules obcordate, ca. 2 × 5 mm, hispidulous.
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