[2][3] They are aromatic, with erect branched stems up to 60 cm long covered with fine hairs at the tips.

By far the best-known species is the herb hyssop (H. officinalis), widely cultivated outside its native area in the Mediterranean.

[7] This herb is used in the treatment of throat and lung complaints, and is regarded as a stimulant, carminative, and expectorant.

Its leaves are stimulant, stomachic, carminative, and soothing to colic, and its juice is used to treat roundworms.

[8] In addition to its use as a flavoring agent in bitters and tonics, hyssop oil is also used in perfumery.