Malabar Bluish Swertia is an annual erect herb, up to 2
ft tall. Branchlets are 4-angled and obscurely 4 winged. Leaves are
simple, opposite-decussate, stalkless, 1-3 x 0.8-2 cm, ovate-round,
blunt at tip, somewhat stem-clasping at base, margins entire, 3-5
ribbed, leathery. Flowers are blue lurid or white, 4-5 mm across, in
flat topped corymbs at branch-ends and in leaf-axils.
Flower-cluster-stalk is up to 15 cm long; flower-stalk 2.5 cm long.
Calyx 4-partite, ovate-oblong or rarely lanceshaped, 4-5 x 1-1.5 mm,
prominently 3-5 nerved, blunt or pointed at tip, curled at margins.
Petals are 4, elliptic-obovate, 6-7 x 1-3.5 mm, blunt at tip, often
inflexed along margins, with a nectary at base; nectaries with fringed
margins. Stamens are 4, inserted at base of flower; filaments linear,
ribbon-like, 2.8-3.5 mm long, dilated downwards. Ovary 1-celled,
ellipsoid, 3.5-4.5 x 1-2 mm; ovules numerous; style short, 0.5-0.8 mm
long; stigma bifid, capitate. Fruit is an oblong, stalkless, 2-valved
capsule; seeds many, small. Malabar Bluish Swertia is endemic to Southern
Western Ghats. Flowering: November-April.
Identification credit: Amber Srivastava, P. Samydurai
Photographed in Mullayangiri, Karnataka & Velliangiri Hills, Coimbatore distt, Tamil Nadu
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The flower labeled Malabar Bluish Swertia is ...