Ludwigia helminthorrhiza

Description

Ludwigia helminthorrhiza is native to the American tropics, ranging from southern Mexico to Paraguay. It typically grows as a floating plant with long stems in shallow waters or as an emersed creeping plant with slightly lignified stems. This species is not commonly found in trade but is often cultivated in botanical gardens. Its distinctive features include densely packed, sometimes reddish, floating leaves and white, spongelike, spindle-shaped breathing roots up to 2 cm long, known as pneumatophores. Under optimal conditions, it produces flowers with five white petals and a small amount of yellow at the base. This decorative plant requires intense light and ample space for its fast-growing stems. It thrives when rooted in a nutrient-rich substrate. During warm seasons, L. helminthorrhiza can be grown outdoors in a sunny location or planted in a pot placed in a garden pond or mobile container. Cultivation as an emersed plant is easier and encourages flowering.