E. Launert FTEA 1968
Climber up to 5 m. in length; younger stems densely covered with short soft white sericeous hairs, older stems very finely pubescent or glabrescent. Leaf-lamina ovate-cordate, 6-12 x 4-9.5 cm., acute to shortly acuminate, membranous, pubescent or glabrescent above, grey-tomentose beneath and with 2 large glands near base (usually concealed by the indumentum); petiole 1-3 cm. long, densely sericeous with usually 2 small glands above the middle. Flowers in dense axillary and terminal corymbs, +/-1.5 cm. in diameter, evil-smelling; peduncles and rhachis sericeous; pedicels 1-1.5 cm. long, sericeous; bracts ovate; bracteoles lanceolate or linear-subulate. Sepals broadly ovate from a narrowed base, 2-2.5 mm. long, sericeous outside. Petals pale yellow, ovate, 6-7 mm. long, shortly clawed, carinate, subhastate at the base, usually reflexed. Stamens with sub versatile oblong anthers 2.3-2.5 mm. long; filaments somewhat fleshy. Ovary densely sericeous; styles 2.5-3 mm. long, fairly stout, sericeous. Lateral wing of samara oblong-elliptic or oblong-obovate, 1-2 cm. in diameter, with entire margins; dorsal wing absent. Fig. 8.
?caucanthus cinereus Niedenzu: Caucanthus argenteus Niedenzu: Triaspia auriculata Radlk.
Caucanthus auriculatus (Radlk.) Niedenzu