Thunbergia grandiflora

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Photographs by: Dr. Maulik Gadani

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  • Botanical Name : Thunbergia grandiflora (Roxb. ex Rottl.) Roxb.
  • Synonyms : Thunbergia cordifolia Nees.
  • Common Name : Bengal Clock Vine, Bengal Trumpet Vine, Blue Sky Flower, Blue Sky Vine, Blue Trumpet Vine, Neel Lata
  • Plant Family : Acanthaceae
  • Plant Form : Climbers
  • Occurrence (Sectors) : 20
  • Occurrence (Special Areas) : Gujarat Forestry Research Foundation, Indroda Park

About Thunbergia grandiflora Plant :

  • Habit : A large woody climber with young shoots 4-angled.
  • Leaves : Opposite, on swollen nodes, ovate, dentate or lobed, 7-nerved, base cordate, petiole twisted.
  • Inflorescence : Axillary solitary or in racemes
  • Flowers :
    • Bracteate, bracts 2, large, persistent.
    • Calyx small, annular, teeth 5-9.
    • Corolla large, bell-shaped, lobes 5, white below blue above, yellow inside with blue stripes in the throat.
    • Stamens 4, didynamous, epipetalous, anthers spurred, hairy.
    • Ovary on a disk, 2-celled, style long, funnel-shaped, stigma folded.
  • Fruit : Capsule shaped like a bird's head.
  • Flowering and Fruiting Time : February - September
  • Significance :
    • Commonly cultivated in the gardens for its showy flowers.
    • The leaves are used as a poultice.