. The drug plants of Illinois . LOBELIA INFLATA L. Lobelia, Indian tobacco, asthma weed, gag root. Lobeliaceae. U. S. P. XI, p. Ixxi (not official).—An upright, little- to much- branched, mostly smooth herb 1 to 3 feet tall, annual; stem rough-hairy below, con- taining a milky juice; leaves ovate, toothed, alternate, the lower petioled and 2 inches long, the upper sessile and smaller; flowers pale blue, showy but small, 2-lipped, in loose terminal and axillary racemes; fruit a glossy, yellow-brow^n, round, ridged capsule containing very many minute, brown seeds. The leaves and tops collected w

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. The drug plants of Illinois . LOBELIA INFLATA L. Lobelia, Indian tobacco, asthma weed, gag root. Lobeliaceae. U. S. P. XI, p. Ixxi (not official).—An upright, little- to much- branched, mostly smooth herb 1 to 3 feet tall, annual; stem rough-hairy below, con- taining a milky juice; leaves ovate, toothed, alternate, the lower petioled and 2 inches long, the upper sessile and smaller; flowers pale blue, showy but small, 2-lipped, in loose terminal and axillary racemes; fruit a glossy, yellow-brow^n, round, ridged capsule containing very many minute, brown seeds. The leaves and tops collected while the plant is in flower; also the seed. Infre- quent to frequent in open woods, fields, and waste places throughout the state, often occurring as a weed; mid-August through September. Contains a volatile oil and the alkaloids lobcline and lobelidine. Used as an anti- spasmodic in laryngitis and spasmodic asth- ma, an expectorant, and emetic.