Morphological characteristics: Dendrobium primulinum Lindl. drooping, thick fleshy, cylindrical, usually 20-35 cm long, 8-13 mm thick, unbranched, with most nodes, internode length 2-2.5 cm. Leaves papery, two-row, alternate throughout the entire stem, lanceolate or ovate-lanceolate, 8-10.5 cm long, 2-3 cm wide, apex obtuse and unequal 2-lobed, base with papery or…
