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Thunbergia grandiflora
its younger stems are square in cross-section and bear oppositely arranged leaves on stalks 4-12 cm long. these leaves are variable in shape and their margins usually have several large teeth or small pointed lobes. its pale blue, violet or mauve trumpet-shaped flowers (3-8 cm long and 6-8 cm across) have a pale yellow or whitish coloured throat. each flower is borne on a long stalk (4-5 cm long) and has two leafy bracts (15-40 mm long) at its base. its fruiting capsules, when produced, are rounded with a long tapered beak (2-5 cm long).
These vines had climbed up into the trees and were hanging down above the road.
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