E. Launert FZ 1963
Climber up to 5 m. in length; younger stems densely covered with short soft white sericeous hairs, older ones very finely pubescent or glabrescent. Leaves petiolate; lamina 6-12 x 4-9.5 cm., ovate-cordate, apex acute to shortly acuminate, membranous, pubescent or glabrescent above, grey-tomentose beneath and with 2 large glands near the base (usually concealed by the indumentum); petiole 1-3 cm. long, densely sericeous with usually 2 small glands above the middle. Flowers c. 1.5 cm. in diam., in dense axillary and terminal corymbs, evil-smelling; peduncles and rhachis sericeous; pedicels 1-1.5 cm. long, sericeous; bracts ovate; bracteoles lanceolate or linear-subulate. Sepals 2-2.5 mm. long, broadly ovate with a narrowed base, sericeous outside. Petals 6-7 mm. long, pale yellow, shortly unguiculate, ovate, carinate, subhastate at the base, usually reflexed. Stamens with anthers subversatile, 2.3-2.5 mm. long, oblong; filaments somewhat fleshy. Ovary densely sericeous; styles 2.5-3 mm. long, fairly stout, sericeous. Samara with lateral wing 1-2 cm. in diam., oblong-elliptic or oblong-obovate, with entire margins; dorsal wing absent.
Caucanthus argenteus Niedenzu: Triaspis auriculata Radlk.
Caucanthus auriculatus Niedenzu
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