1、 Leaves

The leaves are membranous, oval, oblong or wide oval in shape, about 6.5 to 9.5 cm long and 4 to 8 cm wide. The top of the leaves is short and gradually sharpened, the base is heart-shaped, there are fine pilose hairs on the leaf veins, the petiole is 1.5 to 5 cm long, and 3 to 5 small glands will be clustered at the top

2、 Flowers

The flowers of nocturnal tuber are umbelliform cymes, usually axillary, with more than 30 flowers. The stem of the inflorescence is 5 to 15 mm long, hairy, fragrant flowers. The lobes of the calyx are oblong lanceolate, with fine pilose hair on the outside. The inner surface of the calyx has five small glands. The Corolla is yellow green, high footed disc-shaped, and the Corolla is cylindrical