Odontonema tubaeforme is a plant in the family Acanthaceae native to Central America and naturalised as a garden escape in numerous other countries.
O. tubaeforme is an upright shrub up to 2 m or 3 m tall. Its elliptical, glossy leaves are 10 cm by 20 cm with a 2 cm petiole and arranged opposite each other on the stem. It has terminal spikes of waxy red to burgundy flowers, 30 mm long with 5 mm petals, and blooms in summer and autumn. It is grown as an annual frost-tender ornamental garden plant.
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