The drug plants of Illinois The drug plants of Illinois . drugplantsofilli44teho Year: 1951 Tehon THE DRUG PLANTS OF ILLINOIS 117 VERBENA HASTATA L. Blue ver- vain, verbain, w^ild hyssop, simpler's joy, ironweed. Verbenaceae.—An erect, upwardly branched, pubescent herb 2 to 6 feet high, perennial; stem angled and grooved, rough; leaves lanceolate, long- pointed, short-petioled, opposite, doubly serrate, strongly veined, gray-pubescent beneath, 3 to 6 inches long; flowers blue, small, densely crowded in numerous slen- der spikes 2 to 6 inches long. The herb collected. Frequent to com- mon in p
The drug plants of Illinois The drug plants of Illinois . drugplantsofilli44teho Year: 1951 Tehon THE DRUG PLANTS OF ILLINOIS 117 VERBENA HASTATA L. Blue ver- vain, verbain, w^ild hyssop, simpler's joy, ironweed. Verbenaceae.—An erect, upwardly branched, pubescent herb 2 to 6 feet high, perennial; stem angled and grooved, rough; leaves lanceolate, long- pointed, short-petioled, opposite, doubly serrate, strongly veined, gray-pubescent beneath, 3 to 6 inches long; flowers blue, small, densely crowded in numerous slen- der spikes 2 to 6 inches long. The herb collected. Frequent to com- mon in pastures and open, moist soil. Contains the glucoside verbenalin, a bit- ter principle, and tannin. Used as a tonic, expectorant, and emetic. VERONICA ARVENSIS L. Corn speedwell, rock speedwell, wall speed- well. Scrophulariaceae.—An erect, often diffusely branched, hairy herb 2 to 16 inches high, annual; leaves ovate, obtuse, 14 to Yi inch long, opposite, the lowest petioled, crenate; flowers blue, small, soli- tary on short pedicels in the leaf axils, 4- parted; fruit a heart-shaped capsule. The herb collected. Frequent to com- mon in waste places, pastures, and fields and about dwellings throughout the state; April to early June. Contains a bitter principle of unknown composition. Said to be a diaphoretic, diuret- ic, and expectorant. VERONICA OFFICINALIS L. Speedwell, ground heal, gypsy weed, Paul's betony. Scrophulariaceae.—A prostrate, creeping, erectly branched, pu- bescent herb, perennial; branches stout, 3 to 10 inches high; leaves obovate, obtuse, 1/2 to 2 inches long, opposite, short-petioled, serrate; flowers pale blue, about 14 ir^ch wnde, 4-parted, crowded in dense, axillary, stalked spikes; fruit a minute, somewhat heart-shaped, many-seeded capsule. The herb collected. Introduced; infre- quent to rare in abandoned fields, pastures, and open woods throughout the state. Contains a bitter principle that is possibly leptandrin. Used as a diaphoretic, diuretic
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