Chinese water chestnut + Feijoa

The Chinese water chestnut (Eleocharis dulcis; synonyms E. equisetina, E. indica, E. plantaginea, E. plantaginoides, E. tuberosa, E. tumida), more often called simply the water chestnut, is a grass-like sedge grown for its edible corms. The water chestnut is actually not a nut at all, but an aquatic vegetable that grows in marshes, underwater in the mud. It has tube-shaped, leafless green stems that grow to about 1.5 metres. The water caltrop, which is also referred to by the same name, is unrelated and often confused with the water chestnut.

Acca sellowiana, a species of flowering plant in the myrtle family, Myrtaceae, is native to the highlands of southern Brazil, eastern Paraguay, Uruguay, northern Argentina, and Colombia. It is widely cultivated as a garden plant and fruiting tree in New Zealand, and can be found as a garden plant elsewhere such as in Australia, Azerbaijan, western Georgia and southern Russia. Common names include feijoa, pineapple guava and guavasteen. It is an evergreen, perennial shrub or small tree, 1?7 metres (3.3?23.0 ft) in height, widely cultivated as a garden plant and fruiting tree.