Lobelia is found in wooded areas of the United States and Canada
Lobelia traditionally has been used to treat asthma, bronchitis, cough, and pneumonia, usually as an expectorant.
World Health Organization (WHO)
Lobelia comprises the dried aerial parts of lobelia species, the
activity of which is due chiefly to the alkaloid lobeline. Although preparations
containing lobelia were formerly available for use in the symptomatic treatent of
asthma, they are now largely obsolescent as a result of their irritant properties and
the availability of more effective preparations.