Lobelia
Image: Kivi (cc-by-nc)
NameLobelia
Scientific NameLobelia inflata L.
Common NamesIndian Tobacco, Pukeweed, Asthma Weed, Gagroot, Vomitwort
Plant FamilyCampanulaceae
Natural HabitatNative to eastern North America, it commonly grows in disturbed areas such as fields, roadsides, open woods, and pastures. It thrives in moist, well-drained soils and prefers partial to full sun.
Parts Usedwhole_plant
Medicinal Actionsexpectorant,nervine,sedative
Traditional UsesTraditionally, Lobelia inflata has been used as an expectorant for various respiratory conditions like asthma, bronchitis, and coughs, helping to clear mucus. It was also historically employed as a potent emetic to induce vomiting in cases of poisoning, and as a nervine to relax muscles and ease spasms, particularly in conditions such as whooping cough and epilepsy.
Active ConstituentsLobeline, Lobelanine, Lobelanidine, Isolobelanine
Preparation Methodstincture,infusion,powder
Contraindications & WarningsLobelia is a potent herb and should be used with extreme caution and only under expert supervision. It is contraindicated in pregnancy, breastfeeding, and in individuals with heart disease, high blood pressure, or seizure disorders. High doses can cause severe nausea, vomiting, sweating, dizziness, tremors, and can be fatal. It may interact with nicotine replacement therapies and other medications.
Cultivation NotesLobelia inflata grows best in full sun to partial shade in well-drained, moist soil. It can be propagated from seed, typically sown in spring or fall. As an annual or biennial, it readily self-seeds in suitable conditions.
Raritycommon
Description
Lobelia inflata is an annual or biennial herbaceous plant, typically growing up to 3 feet tall with hairy stems and alternate, toothed leaves. It produces small, pale blue to white, two-lipped flowers arranged in terminal racemes, which mature into distinctive inflated seed capsules.
