A Detailed Explanation of Orchid Morphological Characteristics: A Comprehensive Introduction to Orchids

Perennial herbaceous plant. The roots are fleshy and enlarged, without root hairs, and have symbiotic fungi. It has pseudobulbs, commonly known as lu tou, which are externally covered with leaf sheaths; often multiple pseudobulbs are connected together, existing in rows at the same time. The leaves are linear or sword-shaped, leathery, upright or drooping; the flowers are solitary or in racemes, with numerous bracts borne on the pedicel. The flowers are bisexual and fragrant. The corolla is composed of 3 sepals, 3 petals, and the column. The middle sepal is called the main petal. The lower 2 are the lateral sepals, and the spreading condition of the lateral sepals is called hu. The upper 2 petals are upright, relatively thick and fleshy, with the tips curled inward, commonly known as peng. The lower 1 is the lip, relatively large, commonly known as lan sun. After maturity it is brown, and the seeds are tiny and powdery.