Trop. & Subtrop. Asia to N. Australia as per WCSP;

Andaman Is.; Assam; Bangladesh; China Southeast; East Himalaya; Hainan; India;
Jawa; Nepal; Northern Territory; Philippines; Queensland; Sri Lanka; Thailand;
as per Catalogue of Life;

Diffuse herbs, 15-60 cm tall, branched from near the base; branches radiating, rooting at the nodes. Leaves sessile, 3-20 x 0.4-1.5 cm, linear or linear-lanceolate, apex acute or subacute; sheaths to 2 cm long, margins ciliate. Panicle lax, terminal. Flowers 8-12 mm across, solitary or 2-4-fascicled in the axils of persistent, 0.8-1.5 cm long, convolute, purplish bracts; pedicels 5-7 mm long, jointed, hirsute. Sepals 3, 4-6 x 2.5-3.5 mm ovate-lanceolate. Petals 3, violet, 4-6 x 3-4 mm, obovate, base cuneate, apex obtuse. Stamens 2 perfect, filaments 3-3.5 mm long, violet, flattened towards base, bearded with long, purple hairs; staminodes 3-4; filaments bearded. Ovary c. 1.5 mm long, globose, 3-gonous; style 2-2.5 mm long, violet; stigma capitate. Capsule 3-4 x 3.5-4 mm, subglobose, trigonous, 3-celled, enclosed in persistent sepals. Seeds 3, 1 in each cell, 2-3 x 2-2.5 mm, hemispheric, rugose, brownish.
Flowering and fruiting: July-February
Moist localities in the plains
India, Sri Lanka and China
(Attributions- Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi from India Biodiversity Portal)



Herb ID from Bangladesh_SM_4013-2 : 5 posts by 2 authors. Attachments (1)- 927 kb. 

Picture take, Sep,2018 from Sonadia Island, Cox’s Bazar  

I think Murdannia sp.

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