|A picture of the fruiting limbs of Crescentia cujete, the Calabash tree, located in the north section of our tropical greenhouse. .|
A. That's a Calabash tree. Crescentia cujete. It's in the same family as the glorious pink trumpet trees that you see blooming all around the Arboretum now. The fruit is inedible, but used commonly where the tree is native (Central and South America), or where it has been introduced and naturalized (India).