Herb, sparsely to densely pubescent; trichomes on stem, yellowish brown. Leaves sessile; blade linear to lanceolate, (14-)30-77 x (4-)7-30 mm, apex acute, base cordate, margin entire or with a few teeth, main vein and lateral veins raised on under surface. Flower bracts (18-)20-25 x (8-)16-20 mm, longer than mature fruit. Calyx covered with stipitate glands having one stalk cell and multicellular trichomes; lobes 2.5-4.8 mm long. Corolla with inner and outer surface of lobes and outer surface of tube yellow, inside of tube dull yellow; lobes 9.5-14 x 11-20 mm, tube 23-21 mm long and 2.4-11 mm in diameter. Filaments 3-4.6 mm long; anther thecae 3-4.2 mm long. Style 11-13 mm long; unicellular trichomes present on upper part. Fruit glabrous; 15-25 mm long; globose base 6-10 mm in diameter; stalk 45-60 mm long. Seed reddish brown; surface with prominent ridges; 2.6-4.6 mm in diameter.
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