1、 Leaf difference

The leaves of caviar orchid are opposite, glabrous and papery. The shape of the leaves is oval or obovate oval, oblanceolate or obovate, and obovate lanceolate. The length is about 11 to 22 cm, and the width is about 4 to 8 cm. The top of the leaves gradually becomes sharp, the base is wedge-shaped, and the edge is serrated

Milan leaves are pinnate compound leaves, about 5 to 12 cm long. The leaves are alternate. The leaf axis has narrow wings and is obovate or long oval. The apex of the leaves is sharp and the base is wedge-shaped. Both sides of the leaves are smooth and glabrous, complete, and the leaf veins are obvious

2、 Flower difference

The spikes of roe orchid are combined into a terminal panicle. The flowers are small, yellow green, fragrant and sessile

Milan panicle axillary, about 5 to 10 cm long, yellow flowers, strong fragrance, 5-lobed calyx, round lobes, 5-petaled corolla, oblong or nearly round

3、 Fruit difference

The drupe of caviar orchid is white at maturity

The fruit of Milan is a berry, oval or nearly spherical, about 10 to 12 mm long, and the seeds have fleshy pseudotesta