. The drug plants of Illinois. Botany, Medical; Botany. 42 ILLINOIS NATURAL HISTORY SURVEY Circular 44. GOLLINSONIA CANADENSIS L. Stone-root, horse balm, citronella. La- biatae.—An erect, somewhat branched, aromatic, smooth herb 2 to 3 feet tall, per- ennial; rootstock thick, hard; stem stout, often glandular above; leaves ovate, acumi- nate, dentate, 6 to 10 inches long, slender- petioled or the upper ones sessile, opposite; flowers light yellow, about Yi inch long, 2-lipped, lemon-scented, in racemes on the branches of a large panicle. The roostock and the herb collected. From Champaign Coun
. The drug plants of Illinois. Botany, Medical; Botany. 42 ILLINOIS NATURAL HISTORY SURVEY Circular 44. GOLLINSONIA CANADENSIS L. Stone-root, horse balm, citronella. La- biatae.—An erect, somewhat branched, aromatic, smooth herb 2 to 3 feet tall, per- ennial; rootstock thick, hard; stem stout, often glandular above; leaves ovate, acumi- nate, dentate, 6 to 10 inches long, slender- petioled or the upper ones sessile, opposite; flowers light yellow, about Yi inch long, 2-lipped, lemon-scented, in racemes on the branches of a large panicle. The roostock and the herb collected. From Champaign County south and south- westward in dry, rich woods, becoming common in the Ohio River valley; rare in the north. Contains a glucoside and a resin; the leaves also contain a volatile oil. The root is used as a diuretic and tonic. I. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Tehon, L. R. (Leo Roy), 1895-1954. Urbana, Ill. : Natural History Survey Division
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