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Butterfly pea, Blue pea, Nil Katarolu

Syn.: Clitoria ternatea var. alba hort.

Family: Fabaceae

Clitoria ternatea

Description: Features striking deep blue flowers with light yellow markings, although white variants also exist. The leaves are pinnate, with 5-9 oval leaflets. The plant has a slender, herbaceous stem that can climb or trail along surfaces. Its fruit is a flat, green pod that turns brown when mature, containing 6-10 seeds.

Substitutions: Centrosema virginianum (Spurred Butterfly Pea) – Features purple to blue flowers similar to Clitoria ternatea, commonly found in wildflower meadows. – Vigna unguiculata (Cowpea) – Has attractive purple or white flowers and is cultivated for its edible seeds and pods. – Ipomoea purpurea (Common Morning Glory) – Known for its showy purple or blue flowers and vigorous climbing habit, often used as an ornamental plant.

Clitoria ternatea

Ecology: Clitoria ternatea thrives best in well-drained, sandy loam or loamy soil with a slightly acidic to neutral pH. It prefers warm, tropical, and subtropical climates, requiring full sunlight for optimal growth. The plant is drought-tolerant once established but benefits from regular watering during prolonged dry periods. It can withstand occasional flooding but does not thrive in waterlogged conditions. Additionally, it performs well in areas with temperatures ranging between 20–30°C (68–86°F).

Clitoria ternatea

General Distribution: Native to tropical Asia but is now widely distributed across tropical and subtropical regions worldwide, including parts of Africa, Central and South America, and Southeast Asia.

Use: Also prized for its medicinal properties, ornamental value, and use in culinary applications, such as natural food coloring and herbal teas. The plant is also known for its benefits in improving soil fertility through nitrogen fixation.

Clitoria ternatea

Author of text and photos: Chanduni Bootawatta.

Photographed in Matale, Sri Lanka on 04/07/2024.

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