Ludwigia perennis L.

Family: Onagraceae

Taxonomy: Plantae > Tracheophyta > Magnoliopsida > Myrtales > Onagraceae > Ludwigia > L. perennis

Common name [English]: Perennial Water Primrose

Vernacular name [Malayalam]: നീർകരായമ്പു

Nativity: Tropical & Subtropical Old World

Habitat: Waterlogged areas in grasslands, ponds, ditches, puddles, marshes, swamps.

Description: Erect herbs. Leaves 2-6 x 0.5-15 cm, elliptic-lanceolate, base attenuate, apex acute to acuminate, glabrous. Flowers sessile, 4-merous. Calyx tube adnate to ovary; lobes 4, c. 2 mm long, ovate acuminate. Petals 4-5 mm long, elliptic, yellow. Stamens 4; filaments short. Ovary 1-1.5 cm long, linear, 4-celled, 4-angled. Ovules many. Capsule 1-2 cm long, linear, subterete, 4-ribbed. Seeds ellipsoid.

Flowering and Fruiting :Throughout the year

Uses: Folk medicine

Cultivation : Wild

References

http://www.plantsoftheworldonline.org

https://indiabiodiversity.org