The drug plants of Illinois drugplantsofilli44teho Year: 1951 60 ILLINOIS NATURAL HISTORY SURVEY Circular 44 GERANIUM MAGULATUM L. Granesbill, wild geranium, alum root. Geraniaceae.—An upright and sparingly branched, hairy herb 1 to 2 feet tall, per- ennial; rootstock (rhizome) 2 to 4 inches long, thick, with numerous scars from previous years' growths; stem slender, hairy; leaves palmately 3- to 5-parted and the divisions cleft and toothed, mostly basal, long-petioled, 3 to 6 inches wide, usually 2 or more forming an involucre; flowers rose- or violet-purple, 1 to II/2 inches wide, in lo
The drug plants of Illinois drugplantsofilli44teho Year: 1951 60 ILLINOIS NATURAL HISTORY SURVEY Circular 44 GERANIUM MAGULATUM L. Granesbill, wild geranium, alum root. Geraniaceae.—An upright and sparingly branched, hairy herb 1 to 2 feet tall, per- ennial; rootstock (rhizome) 2 to 4 inches long, thick, with numerous scars from previous years' growths; stem slender, hairy; leaves palmately 3- to 5-parted and the divisions cleft and toothed, mostly basal, long-petioled, 3 to 6 inches wide, usually 2 or more forming an involucre; flowers rose- or violet-purple, 1 to II/2 inches wide, in loose, long-stalked clusters terminating the stems; fruit a slender, dry capsule whose sides, on opening, curl outward and up- ward. The root (rhizome) collected just before flowering. Frequent to abundant in moist woods throughout the state; early April to mid-June. Contains gallic acid and tannin, the latter to the extent of about 25 per cent of the dried drug. Used chiefly as an astringent.
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