P. E.—Leaves and stalks.
N. H.—Cuba, Central America.
Properties: Demulcent, expectorant.
Indications: Persistent dry hard resonant or ringing bronchial cough. Useful in chronic bronchitis, having a soothing and sedative effect to the mucous surface of the post-nasal region and bronchial tubes, soothing and relieving irritability, of these surfaces, and is a valuable expectorant in these conditions. Its action is limited to the air passages.