Axillary orchid, also known as rib stem orchid, cap orchid, and leaf heart orchid, is a plant of the axillary orchid subfamily of Orchidaceae, and is one of the most rare ornamental plants in tropical America. Most of the flowers are small, but they are peculiar in shape. The inflorescence is born on the top of the stem and appears at the base of the main vein of the leaf. Racemes or single flowers, with dark green leaves set off a bunch or clusters of beautiful gorgeous flowers, very eye-catching and attractive.