Yunnan Stone Flower
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Yunnan Stone Flower
P Native Unknown Photo: Ramesh Kadyan
Common name: Yunnan Stone Flower
Botanical name: Didymocarpus yunnanensis    Family: Gesneriaceae (Gloxinia family)
Synonyms: Roettlera yunnanensis

Yunnan Stone Flower is a perennial herb with stems 3-26 cm, densely finely velvet-hairy to becoming hairless. Flowers are purple to reddish purple with darker stripes, 2.5-3.5 cm, outside sparsely velvet-hairy, inside hairless; tube narrowly funnel-shaped, 2-2.8 cm x 4-6 mm; upper lip about 3.5 mm; lower lip about 7 mm. Filaments are about 7 mm, staminodes 3, 1.2-5 mm. Pistil 2.3-3.2 cm. Sepal-cup is slightly zygomorphic, 3-6 mm; limb indistinctly 2-lipped; tube 2-4 mm; upper lip 3-lobed, depressed trapeziform, about 2 mm, lobes triangular, 1-2 x about 1.2 mm; lower lip 2-lobed, depressed trapeziform, about 3 mm, lobes triangular, 1-2 x about 2 mm, outside sparsely finely velvet-hairy, inside hairless, margin entire. Flower-stalk 4-10 mm. Cymes are 1-15-flowered; flower-cluster-stalk 1-12 cm, sparsely glandular finely velvet-hairy; bracts free, ovate to round, often leaflike, 0.2-2 cm, hairless to finely velvet-hairy, yellow glandular, margin rounded toothed to entire. Leaves are opposite; leaf-stalk 0.2-14 cm; leaf blade narrowly ovate to ovate, oblong, or obovate, 1-14 x 1-10 cm, herbaceous, above appressed finely velvet-hairy, eglandular, below finely velvet-hairy along veins, eglandular, base oblique, broadly wedge-shaped to heart-shaped, margin rounded toothed to crenulate or nearly entire, tip pointed to rounded; lateral veins 5 or 6 on each side of midrib. Yunnan Stone Flower is found on rocks, cliffs in valleys, at altitudes of 1500-3400 m, in NE India and China (SW Sichuan, SE Xizang, NW and W Yunnan). Flowering: June-September.

Identification credit: Tabish Photographed in Arunachal Pradesh.

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