| a common American plant, Lobelia inflata, of the lobelia family, having small, blue flowers and inflated capsules. |
| Indian tobacco n. A poisonous North American plant (Lobelia inflata) having light blue to white flowers and rounded seedpods enclosed by an inflated persistent calyx. |
Indian tobacco
(species Lobelia inflata), annual plant of the family Campanulaceae, native to open woodlands of North America. It was once considered a medicinal plant because of the emetic alkaloid present in the plant parts, especially the roots, but is now regarded as poisonous
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