Aak (Calotropis procera)
Asclepiadaceae · Calotropis

Aak / Giant Milkweed

Calotropis procera

ShruboutdoorMedicinal
Habit
Shrub
Found in India
Rajasthan, Maharashtra, Gujarat & more
Flowering
Throughout the year

Plant Details

Scientific name
Calotropis procera
Genus
Calotropis
Habit
Shrub
Distribution
India, Afghanistan, Arabian peninsula to Tropical Africa
Found in India
Rajasthan, Maharashtra, Gujarat, Uttar Pradesh, Uttarakhand, Madhya Pradesh
Flowering & fruiting
Throughout the year
Conservation status
Not Evaluated (NE)

Leaf characters

Arrangement
Opposite
Simple type leaf character
Type
Simple
Entire margin leaf character
Margin
Entire
Pinnate venation leaf character
Venation
Pinnate

Recorded for Aak.

Flower & fruit characters

Flower symmetry
Radial
Inflorescence
Cyme

Typical of the Asclepiadaceae family — flowering plants only; individual species can differ.

Local Names

Hindi
आक Aak, मुदर Mudar, aak, akada
Nepali
सेतो आँक Seto Aank, बाह्रमासे आँक Bahramaase Aank, आँक Aank
Bengali
ছোট আকন্দ
Tamil
vellai erukkan, vellai erukku, வெள்ளெருக்கு
Telugu
తెల్ల జిల్లేడు, తెల్లజిల్లేడు, శ్వేతార్క
Kannada
bili aekka, bili aekkada gida, ಅರ್ಕ
Malayalam
erikku, erukku, ചിറ്റെരിക്ക്
Marathi
mandara, rui, रुई
Sanskrit
akund
Gujarati
આંકડો

Aak in India

Aak is the tough milkweed of India's hottest, driest waste ground — आक Aak (Hindi), vellai erukkan (Tamil), తెల్ల జిల్లేడు (Telugu), bili aekka (Kannada), erikku (Malayalam), mandara (Marathi). Calotropis procera is recorded across Rajasthan, Maharashtra, Gujarat, Uttar Pradesh, Uttarakhand, Madhya Pradesh, thriving where little else will grow.

Uses

Its flowers are offered to Shiva and Hanuman and strung into temple garlands, and it has many attributed folk-medicine uses. But its milky latex is a strong irritant and the plant is toxic, so any such use is traditional, never advice; the floss from its pods is used to stuff pillows.

How to Identify Aak

A stout shrub with thick, pale grey-green oval leaves coated in a waxy bloom. The waxy star-shaped flowers are white with purple-tipped lobes; it is very like its sibling C. gigantea but the flower lobes curve inward. Every cut part bleeds copious white latex.

Frequently Asked Questions

What is Giant Milkweed called in different Indian languages?
आक Aak (Hindi); vellai erukkan (Tamil); తెల్ల జిల్లేడు (Telugu); bili aekka (Kannada); erikku (Malayalam); mandara (Marathi); ছোট আকন্দ (Bengali); આંકડો (Gujarati); akund (Sanskrit).
Is aak (madar) poisonous?
Yes — its milky latex is a strong irritant and the plant is toxic if eaten, so it must be handled carefully despite its ritual and folk-medicine associations.
How is it different from Calotropis gigantea?
Both are 'aak/madar'; in C. procera the flower lobes curve inward and the plant is often shrubbier, while C. gigantea's flower lobes spread flatter.
Illustration representing the Asclepiadaceae family
Botanical family

Asclepiadaceae

Milkweed Family

Aak belongs to the Asclepiadaceae family.

The illustration represents the family — not necessarily this exact species.

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Sources: GBIF — Calotropis procera (India distribution & vernacular names) (CC BY 4.0) · iNaturalist — Calotropis procera (regional names, India observations) (CC BY 4.0) · Wikipedia — Calotropis procera (background/comprehension only) (CC BY-SA 4.0)