Of the Lobelia family (Lobeliaceae), the cardinal flower (Lobelia cardinalis).
Of the Lobelia family (Lobeliaceae), the downy lobelia (Lobelia puberula).
Of the Lobelia family (Lobeliaceae), the great lobelia (Lobelia syphilitica).
Of the Lobelia family (Lobeliaceae), Indian tobacco (Lobelia inflata).