. The drug plants of Illinois. Botany, Medical; Botany. 118 ILLINOIS NATURAL HISTORY SURVEY Circular 44. VERONICA VIRGINIGA L. Black root, Gulver's-root, Culver's physic, Bowman's root, tall speedwell. Scroph- ulariaceae.—An erect, unbranched, mostly smooth herb 2 to 7 feet high, perennial; rhizome (rootstock) thick, bent, branched, fibrous-rooted; stem slender; leaves nar- rowly lanceolate, acuminate, 3 to 6 inches long, in whorls of 3 to 9 at each node, sharply serrate, short-petioled; flowers white to bluish, very small but very nu- merous and crowded in, usually, several dense spikes 3 to
. The drug plants of Illinois. Botany, Medical; Botany. 118 ILLINOIS NATURAL HISTORY SURVEY Circular 44. VERONICA VIRGINIGA L. Black root, Gulver's-root, Culver's physic, Bowman's root, tall speedwell. Scroph- ulariaceae.—An erect, unbranched, mostly smooth herb 2 to 7 feet high, perennial; rhizome (rootstock) thick, bent, branched, fibrous-rooted; stem slender; leaves nar- rowly lanceolate, acuminate, 3 to 6 inches long, in whorls of 3 to 9 at each node, sharply serrate, short-petioled; flowers white to bluish, very small but very nu- merous and crowded in, usually, several dense spikes 3 to 9 inches long at the top of the plant. The rhizomes and roots collected in the fall of the second year. Frequent, in- frequent, or rare but in all parts of the state; for the most part on prairie soils but also in many other situations. Contains the intensely bitter and nauseous substance leptandrin, a volatile oil, and tannin. Used as a laxative and cholagogue and 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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