The drug plants of Illinois The drug plants of Illinois . drugplantsofilli44teho Year: 1951 TEUGRIUM CANADENSE L. Ger- mander. Labiatae.—An erect, usually unbranched, hoary herb 1 to 3 feet high, perennial; stem slender, 4-sided; leaves lanceolate, acute, 2 to 5 inches long, irreg- ularly dentate, short-petioled, opposite; flowers purple to white, 1/^ to ^ inch long, apparently 1-lipped, in few-flowered whorls crowded in a dense, terminal spike; spike 6 to 12 inches long in fruit. The herb collected. Infrequent but occurring throughout the state in moist soil, along streams, and in open woods
The drug plants of Illinois The drug plants of Illinois . drugplantsofilli44teho Year: 1951 TEUGRIUM CANADENSE L. Ger- mander. Labiatae.—An erect, usually unbranched, hoary herb 1 to 3 feet high, perennial; stem slender, 4-sided; leaves lanceolate, acute, 2 to 5 inches long, irreg- ularly dentate, short-petioled, opposite; flowers purple to white, 1/^ to ^ inch long, apparently 1-lipped, in few-flowered whorls crowded in a dense, terminal spike; spike 6 to 12 inches long in fruit. The herb collected. Infrequent but occurring throughout the state in moist soil, along streams, and in open woods; also as a weed along roads and in fields and pastures. Contains a volatile oil, tannin, and a bit- ter principle. Used as an aromatic, stimu- lant, diaphoretic, diuretic, and emmenagogue. THUJA OGGIDENTALIS L. Arbor vitae, white cedar, 3^ellow cedar, feath- er-leaf cedar. Pinaceae.—A small to moderate, densely branched, evergreen tree; bark of the trunk red-tinted, shal- lowly fissured into narrow ridges; trunk usually divided into 2 or 3 stout^ upright, secondary stems; branches and branchlets slender; the tw^igs covered with small, flat- tened, pointed, overlapping, 4-ranked, scale- like leaves; frondlike; fruit a small, woody cone. The leaves and branchlets (leafy tw^igs) collected. Native but rare in the north- eastern quarter of the state; extensively used as a decorative tree in all parts of the state. Contains a volatile oil and the crj-stalllne principle thujone. Acts as a stimulant and Is used also as a diuretic and carminative; the volatile oil Is an emmenagogue. THYMUS SERPYLLUM L. Modier- of-thyme, creeping thyme. Labiatae. The herb collected. Formerly planted in herb and flower gardens, occasionally escaped and persisting as colonies. Contains a volatile oil (oil of thyme) which yields thymol. Used as an anti- spasmodic In whooping cough; the oil Is used as a carminative, antiseptic, and rubefacient.
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