Sim Jhaar / Roundleaf Toothcup
Rotala rotundifolia
- Habit
- Herb
- Found in India
- Assam, Karnataka, Tamil Nadu & more
- Flowering
- Throughout the year
How to identify Sim Jhaar
Identify Sim Jhaar 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.
- Confirm leaf shape: Lanceolate.
- Confirm flower colour: Pink.
- In season, compare flowering and fruiting time: Throughout the year.
- In India, compare location records such as Assam, Karnataka, Tamil Nadu, West Bengal and nearby regions.
- Confirm it sits within the Lythraceae family pattern, then compare close relatives before deciding it is Sim Jhaar.
Plant Details
- Scientific name
- Rotala rotundifolia
- Genus
- Rotala
- Family
- Lythraceae
- Habit
- Herb
- Habitat
- Along streams and marshy areas
- Habitat type
- Wetland
- Distribution
- South and Southeast Asia, Japan, China
- Found in India
- Assam, Karnataka, Tamil Nadu, West Bengal, Meghalaya, Himachal Pradesh, Punjab, Arunachal Pradesh, Chhattisgarh, Kerala, Manipur, Uttar Pradesh, Uttarakhand, Jammu & Kashmir
- Flowering & fruiting
- Throughout the year
- Conservation status
- Least Concern (LC)
Leaf characters
- Leaf shape
- LanceolaterecordedLong and narrow, tapering to a point, like a lance head.“The emersed form has rounded leaves, while submerged leaves are narrow and lanceolate.” — Wikipedia, CC BY-SA 4.0
Characters marked “recorded” are for Sim Jhaar itself; the rest are typical of the Lythraceae family.
Flower & fruit characters
- Flower colour
- Pinkrecorded
Typical of the family
- Flower symmetry
- Zygomorphic (bilaterally symmetrical)
- Fruit
- Berry
Characters marked “recorded” are for Sim Jhaar itself; the rest are typical of the Lythraceae family — flowering plants only.
Local Names
- Nepali
- सिम झार Sim Jhaar
About Sim Jhaar
Roundleaf toothcup (Rotala rotundifolia) belongs to the Lythraceae family, where it grows as a herb. In India it has been recorded in Assam, Karnataka, Tamil Nadu and 11 other states. It grows in along streams and marshy areas. It flowers and fruits through much of the year.
Lythraceae
Loosestrife/Henna family
Sim Jhaar belongs to the Lythraceae family.
The illustration represents the family — not necessarily this exact species.
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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.
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