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Tripetal Starviolet
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Tripetal Starviolet
P Native Photo: Thingnam Rajshree
Common name: Tripetal Starviolet • Chinese: 西南新耳草 Xi Nan Xin Er Cao
Botanical name: Neanotis wightiana    Family: Rubiaceae (Coffee family)
Synonyms: Hedyotis wightiana, Spermacoce compressa

Tripetal Starviolet is a prostrate herb, rooting at nodes. Flowers are 1-3 mm long, pinkish or white, tubular; petals 3 or 4, ovate-oblong, 0.5-2.5 x 0.5-3 mm, pointed to blunt at tip, hairless. Stamens are 3-4; filaments hairless, inserted near the base of flower tube. Sepal-cup is pale green; tube short; sepals 3-4, ovate, 0.5-1 x about 2 mm, margins fringed with hairs, pointed, recurved. Flowers are borne in head-like cymes in leaf-axil branchlets, several flowered; bracts reduced. Stems are four-edged, bristly. Leaves are simple, in perpendicular opposite pairs, ovate or ovate-elliptic, 0.6-2.5 x 0.4-1.8 cm, base wedge-shaped, margins entire, fringed with hairs, tip pointed, leathery, sparsely velvet-hairy. Capsules are laterally compressed, spherical to round, about 2 x 2 mm, 2-celled. Tripetal Starviolet is found in the Himalayas to S. China and Indo-China, Sumatera, on grassy slopes, roadsides, banks at streamsides, at altitudes of 900-2500 m. Flowering: May-July.

Identification credit: Tabish Photographed in Meghalaya.

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