Herbs to 0.5 m tall, the stems smooth, drying brown, the lenticels small, diffuse, pustulate, the nodes moderately well spaced except at the apex of the twiglets. Leaves sessile, obovate oblong or obovate, occasionally subspathulate, 18-31 cm long, 8-9 cm wide, acute or deltoid toward the apex, acuminate, the acumen conspicuous, to 2.5 cm long, falcate, ultimately subacute, somewhat attenuate toward the base or below the middle of the blade, finally truncate or subauriculate basally, the costa subimmersed above, prominent beneath, the lat-eral veins 20-30, spreading at first perpendicular to the costa then widely arcuate, plane above, prominulous beneath, subrubescent when dry, with a conspicuous paralleling vein ca. 2 mm from the margin, the intervenal areas spreading retic-ulate, stiffly membranous, glabrous above, puberulent beneath on the costa and the veins; stipules free, ovate lanceolate, to 1.5 cm long, ca. 1.8 cm wide, acute, truncate at the base, scarious, glabrous, the median vein prominulous. Inflores-cences terminal, solitary, cymose paniculate, the peduncle to 9 cm long, ca. 0.12 cm wide, obtusely angular, the primary basal branches paired, opposite, to 4.5 cm long, the upper primary branches disposed as 2 sets of 3 well-spaced whorls, the secondary branches few, similarly disposed; lowermost bracts ovate oblong, to 3 mm long, spreading, glabrous, resembling the stipules in texture. Flowers sessile or with pedicels to 2 mm long; hypanthium ca. 1.5 mm long, glabrous; calycine cup cylindrical or cup shaped, ca. 1 mm long, truncate, glabrous, the teeth as 5 scarcely measurable points; corolla white, the tube cylindrical, 3.2-6.0 mm long, 1.2-1.5 mm wide in the middle, glabrous outside, villosulose within near filament attachment, the lobes 5, narrow oblong, 3-4 mm long, ca. 1 mm wide, narrow toward the apex, erect as bud opens, reflexed at anthesis, with a linear, adaxial spur, 0.3-0.6 mm long, 1.0-1.5 mm below the tip of the lobe; stamens 5(-6), narrowly oblong, ca. 2 mm long, obtuse to truncate, the scarcely measurable filament affixed near the middle of the tube; ovarian disc 0.8-1.0 mm long; style 2.2-5.0 mm long, the stigmatic lobes 2, scarcely wider than the style, 0.2-0.4 mm long. Fruits oblong, to 5 mm long, each pyrene 4-ribbed, glabrous, red when dry, the calyx often persistent, to 0.5 mm long.
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