Echium stenosiphon

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
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Boraginales
Family:	Boraginaceae
Genus:	Echium
Species:	E. stenosiphon
Binomial name
Echium stenosiphon Webb, 1849

Distribution and ecology

Echium stenosiphon occurs in the Barlavento islands of Santo Antão, São Nicolau, São Vicente and Santa Luzia.^[1] It mainly occurs in the subhumid and humid zones, but has also been reported from the arid zone on São Vicente.^[2]

Flowers of E. stenosiphon at Monte Verde.

Subspecies

The following subspecies are recognised:^[5]

• Echium stenosiphon subsp. glabrescens
• Echium stenosiphon subsp. lindbergii
• Echium stenosiphon subsp. stenosiphon