Botanical Survey of India | Flora of India

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Elatine triandra Schkuhr, Bot. Handb. ed. 2, 1: 345, t. 109 b, f. 2. 1808. Peplis americana Pursh, Fl. Arn. Sept. 1: 238. 1814. Elatine americana (Pursh) Arn. in Edinburgh J.Nat. Geogr. Sci. 1: 431. 1930; Dyer in Fl. Brit. India 1: 250. 1874.

Herbs, annual, aquatic or limicolous, soft, glabrous; stems 3 - 12 mm long, creeping, rooting at nodes, often caespitose. Leaves opposite, 2 - 6 mm long, elliptic-oblong or ovate-oblong, decurrent or perfoliate at base, obtuse to emarginate at apex, entire, penninerved with gland-like hydathodes along margin; stipules minute, membranous, ovate-triangular, acute, slightly lacerate or dentate. Flowers axillary, solitary, alternately on left and right at nodes, sessile. Sepals 3, 0.5 - 1.2 mm long, triangular, obtuse. Petals 3, whitish-pink, 1 - 1.6 mm long, broadly ovate, obtuse with a median nerve. Stamens 3, drooping over ovary, alternipetalous; filaments ca 1 mm with flattened petaloid base; anthers ovoid. Ovary globose with 3 almost sessile, punctiform stigmas. Capsules ca 2 mm in diam., depressed subglobose, membranous, minutely stalked. Seeds ca 0.5 mm long, light brown, oblong-cylindric, straight or slightly curved, rounded at both ends with raised hexagonal reticulation.

Fl. & Fr. Oct. - Dec.

Distrib. India: In shallow inundated areas, often in marshy situations along margins of ponds and tanks, between 100 and 2800 m. Jammu & Kashmir, Himachal Pradesh, Andhra Pradesh and Tamil Nadu.

Tropical Asia, Australia, New Zealand, Europe and N. America.


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