Nucularia perrinii, known as askaf, is a species of flowering plant belonging to the family Amaranthaceae.

It is the sole species in genus Nucularia.

Its native range is Selvagens to the western and central Sahara and Sahel.

[1] Askaf is a crucial plant to Sahrawi camel nomads, providing salt and water to camels even during dry spells and casuing a characteristic flavor to camel milk.

[2] Nucularia perrinii is an endemic halophyte plant of central and western Sahara.