Ban Long / Primrose Willow
Ludwigia octovalvis
- Habit
- Undershrub
- Found in India
- Karnataka, West Bengal, Madhya Pradesh & more
- Flowering
- Throughout the year
Plant Details
- Scientific name
- Ludwigia octovalvis
- Genus
- Ludwigia
- Family
- Onagraceae
- Habit
- Undershrub
- Distribution
- Tropics of the World
- Found in India
- Karnataka, West Bengal, Madhya Pradesh, Assam, Gujarat, Rajasthan
- Flowering & fruiting
- Throughout the year
- Conservation status
- Least Concern (LC)
Leaf characters
- Arrangement
- Variable
- Type
- Variable
- Margin
- Variable
- Venation
- Variable
Typical of the Onagraceae family — a field-mark hint, not measured for this exact species.
Flower & fruit characters
- Flower symmetry
- Variable
- Inflorescence
- Variable
- Fruit
- Berry
Typical of the Onagraceae family — flowering plants only; individual species can differ.
Local Names
- Hindi
- बन लौंग Ban long
- Bengali
- বন লবংগ Ban lavanga
- Tamil
- Kattukkirampu
- Kannada
- ಕಾವಾಕುಲ, ಕಾವಾಕುಳ, ಕಾವಾಕೂಲ
- Malayalam
- kattukarayamapu
- Marathi
- पाण लवंग Pan lavang
About Ban Long
Primrose Willow (Ludwigia octovalvis) is an undershrub belonging to the Onagraceae family (Evening-Primrose Family). It occurs across Tropics of the World. It flowers and fruits through much of the year. The species is valued in traditional medicine. Its conservation status has been assessed as Least Concern (LC).

Onagraceae
Evening-Primrose Family
Ban Long belongs to the Onagraceae family.
The illustration represents the family — not necessarily this exact species.
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