Echium stenosiphon is a plant species of the family Boraginaceae.

The species is endemic to Cape Verde.

[1][2] Its local name is língua-de-vaca (cow tongue), a name that may also refer to the related species Echium vulcanorum and Echium hypertropicum.

[3] The plant is used in traditional medicinal for a cough syrup.

[4] Echium stenosiphon occurs in the Barlavento islands of Santo Antão, São Nicolau, São Vicente and Santa Luzia.