1. Leaf DifferenceThe leaves of orchid are oblong, lanceolate or oblong-lanceolate, about 6 to 12 cm long, about 2.5 to 4.5 cm wide, and the petiole is 1 to 1.5 cm long. Both sides of the stems and leaves are smooth, with irregular fine teeth or irregular coarse teeth on the edges. The leaves of orchids range from a few to many, usually growing on pseudobulbs or lower joints, in two rows, with ribbon-shaped, narrowly elliptical or oblanceolate shapes, and the sheath at the base is very broad. 2. Flower DifferencesOrchids have capitula, most of which grow at the top of the stem and the end of the branches, arranged in compound umbels with a diameter of 3 to 6 cm. Orchids are racemes with many flowers that are arranged in pairs on both sides. |
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