Lathyrus clymenum, also called Spanish vetchling,[2] is a flowering plant in the family Fabaceae, native to the Mediterranean.

The plant is cultivated on the island of Santorini in Greece and was recently added to the European Union's products with a Protected Designation of Origin.

For 3,500 years residents of Santorini and neighbouring islands have been cultivating the legume species Lathyrus clymenum, known elsewhere only as a wild plant.

A vulnerable crop, it can be destroyed by strong winds that blow away its flowers before they can yield the pea, by drought or by a sudden heat wave almost instantly.

The seeds of Lathyrus clymenum, from which fava Santorinis is made, has a very high protein content (25%) and is an excellent source of dietary fibre (26%).