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Convolvulaceae family

Poranopsis paniculata (Roxburgh) Roberty, Candollea 14: 26.  1953.
Bas.: Porana paniculata Roxburgh (1819).

Escaped very rare vine of disturbed moist areas, around Castries.
Native to the Indian subcontinent, Myanmar, China.
Also is or was a cultivated ornamental. Difficult to know if this species persists or escapes.