Dendrobium nanum is a species of orchid in the genus Dendrobium Tiny Dendrobium is a small herb with pseudobulbs ovoid, covered with basal portion of leaves and smallest dendrobium known. Leaves are 3 or 4, 3 x 1.2 cm, lance-shaped-elliptic. Tiny flowers are borne in racemes up to 8 cm. Flowers are 6-8, pinkish white; bracts 0.5 cm, lance-shaped; sepals up to 8 mm; mentum to 5 mm; lip tri-lobed, narrowed to a short stalk; lateral lobes narrow, shortly pectinate; ovary with flower-stalks up to 1 cm. Tiny Dendrobium is endemic to Southern Western Ghats.

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