Gulsham / Blue Eranthemum
Eranthemum nervosum
- Habit
- Shrub
- Found in India
- Maharashtra, Karnataka, Rajasthan & more
- Flowering
- November-April
How to identify Gulsham
Identify Gulsham by combining habit, leaf characters, flower or fruit details, location, and its family pattern. Do not rely on one feature alone.
- Look for a shrub habit.
- Confirm leaf surface: Glabrous (smooth, hairless).
- Confirm flower colour: Blue.
- In season, compare flowering and fruiting time: November-April.
- In India, compare location records such as Maharashtra, Karnataka, Rajasthan, Gujarat and nearby regions.
- Confirm it sits within the Acanthaceae family pattern, then compare close relatives before deciding it is Gulsham.
Plant Details
- Scientific name
- Eranthemum nervosum
- Genus
- Eranthemum
- Family
- Acanthaceae
- Habit
- Shrub
- Habitat
- Grown as garden plant
- Habitat type
- Cultivated
- Distribution
- Tropical Asia
- Found in India
- Maharashtra, Karnataka, Rajasthan, Gujarat, West Bengal, Madhya Pradesh, Kerala, Uttarakhand, Goa, Himachal Pradesh, Sikkim, Tamil Nadu, Assam, Telangana, Arunachal Pradesh, Andhra Pradesh, Bihar, Odisha, Chandigarh, Chhattisgarh, Jammu & Kashmir, Meghalaya, Uttar Pradesh, Jharkhand, Manipur, Mizoram, Delhi, Nagaland
- Flowering & fruiting
- November-April
- Conservation status
- Not Evaluated (NE)
Leaf characters
- Leaf surface
- Glabrous (smooth, hairless)recorded
Typical of the family
- Arrangement
- Opposite
Characters marked “recorded” are for Gulsham itself; the rest are typical of the Acanthaceae family.
Flower & fruit characters
- Flower colour
- Bluerecorded
Typical of the family
- Flower symmetry
- Zygomorphic (bilaterally symmetrical)
- Inflorescence
- Spike
- Fruit
- Capsule
Characters marked “recorded” are for Gulsham itself; the rest are typical of the Acanthaceae family — flowering plants only.
Local Names
- Bengali
- কালো বাসক Kaala Baasak
- Dogri
- नलेंकड़ी Nalenkadi, नीली बरहैंकड़ Neeli Braihnkad
- Haryanvi
- गुलशाम Gulsham
- Hindi
- गुलशाम Gulsham
- Nepali
- निल गाठे Nil Gaathe
- Odia
- ଖଇର Khaira
- Tamil
- நீலமுள்ளி Neelamulli
- Telugu
- నల్ల నీలాంబరి Nalla Neelaambari, వాడంబరము Vaadambram
About Gulsham
Blue Eranthemum (Eranthemum nervosum) belongs to the Acanthaceae family, where it grows as a shrub. In India it has been recorded in Maharashtra, Karnataka, Rajasthan and 25 other states. It is grown as garden plant. Flowering and fruiting run from November to April.

Acanthaceae
Acanthus family
Gulsham belongs to the Acanthaceae family.
The illustration represents the family — not necessarily this exact species.
Explore the Acanthaceae 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.
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