Perennial herb. Roots fleshy hypertrophy, no hair, a symbiotic bacteria, can fully and. With pseudobulbs, commonly known as Lu tou, outsourcing has leaf sheaths, often multiple false bulb together rows exist at the same time. Leaves linear or ensiform, leathery, erect or pendulous, flowers solitary or in racemes, pedicels bearing numerous bracts. Flowers bisexual, with fragrance. Corolla composed of 3 sepals and 3 petals and stamen column. Calyx of 1 known as the main valve. 2 for side lobe, side lobe spread said households. On 2 petals erect, succulent thick, apex curved inwards, commonly known as holding. The following 1 for lip, larger, commonly known as blue sun. After mature seeds for brown, small in powder form. Symmetrical, lip, pollinia and gynostemium is a basic characteristic of Orchidaceae plants: for example, Phalaenopsis can clearly see the symmetry; carefully observe carefully see specialization labellum; gynostemium well understood, this is a female stamens connate into orchid endemic characteristics; pollen into the block features but some exceptions, in addition to quasi two genera of Orchidaceae and no, most of the other orchid plants and pollen block handle. The ancients with “ a stem of a flower is blue ” and a stem spend for loh.