Kerdi / Southern Rockbell
Wahlenbergia marginata
- Habit
- Herb
- Found in India
- Rajasthan, Assam, Tamil Nadu & more
- Flowering
- December-May
How to identify Kerdi
Identify Kerdi by combining habit, leaf characters, flower or fruit details, location, and its family pattern. Do not rely on one feature alone.
- Look for a herb habit.
- Check the distinctive field mark: Small bell-shaped blue flowers.
- Confirm flower colour: Blue.
- In season, compare flowering and fruiting time: December-May.
- In India, compare location records such as Rajasthan, Assam, Tamil Nadu, Madhya Pradesh and nearby regions.
- Confirm it sits within the Campanulaceae family pattern, then compare close relatives before deciding it is Kerdi.
Plant Details
- Scientific name
- Wahlenbergia marginata
- Genus
- Wahlenbergia
- Family
- Campanulaceae
- Habit
- Herb
- Habitat
- Grasslands
- Habitat type
- Grassland
- Distribution
- Africa, SE. Asia, Australia, New Zealand, China, Japan, Sri Lanka
- Found in India
- Rajasthan, Assam, Tamil Nadu, Madhya Pradesh, Maharashtra, Karnataka, Kerala, Arunachal Pradesh, Manipur, Uttar Pradesh, Uttarakhand, West Bengal
- Flowering & fruiting
- December-May
- Conservation status
- Not Evaluated (NE)
Flower & fruit characters
- Flower colour
- Bluerecorded
Typical of the family
- Inflorescence
- Cyme
Characters marked “recorded” are for Kerdi itself; the rest are typical of the Campanulaceae family — flowering plants only.
Local Names
- Bengali
- নাক ফুল Naak Phul
- Marathi
- केरडी Kerdi
About Kerdi
A member of the Campanulaceae family, Southern rockbell (Wahlenbergia marginata) is a herb. In India it has been recorded in Rajasthan, Assam, Tamil Nadu and 9 other states. It grows in grasslands. Flowering and fruiting run from December to May.

Campanulaceae
Bellflower Family
Kerdi belongs to the Campanulaceae family.
The illustration represents the family — not necessarily this exact species.
Explore the Campanulaceae familySnap it. Know it.
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Common plant problems
If you are starting from symptoms instead of a diagnosis, use the plant disease symptom checker to narrow the cause before treating.
All plant problem & care guides