Myrciaria vexator, the false jaboticaba, or blue grape tree,[1] is a species of plant in the family Myrtaceae.

M. vexator is a slow-growing evergreen tree that can grow up to 10 metres tall.

[3] The leaves are layered and deep green,[2] the bark peels, and the flowers are small and white.

[4] Myrciaria vexator is endemic to Costa Rica, Panama, and Venezuela.

[5] It is frequently found growing on road verges.