. Bulletin. Agriculture. PLANTS FURNISHING ROOT DRUGS. 48 Description of —Tlic root of Portcrantliiis trifolittfus is thk-k and knotty, witli many sniootliish. rctUUsb l)ro\vn rootlets (PL V. fl«. 1), the latter ill tlryinj,' 'coiiiin- uriiiUIed Icn^'thwiso and showing a few transverse fissures or breaks in the bark, and the interior white and woody. There is practically no odor, and the woody portion i- tasteh'ss. but the bark, which is readily separ- able, is bitter.' increasinii the How of saliva. PorfeniiiUiiix .stiiiiilatus lias a more knotty root, with rootlets that
. Bulletin. Agriculture. PLANTS FURNISHING ROOT DRUGS. 48 Description of —Tlic root of Portcrantliiis trifolittfus is thk-k and knotty, witli many sniootliish. rctUUsb l)ro\vn rootlets (PL V. fl«. 1), the latter ill tlryinj,' 'coiiiin- uriiiUIed Icn^'thwiso and showing a few transverse fissures or breaks in the bark, and the interior white and woody. There is practically no odor, and the woody portion i- tasteh'ss. but the bark, which is readily separ- able, is bitter.' increasinii the How of saliva. PorfeniiiUiiix .stiiiiilatus lias a more knotty root, with rootlets that are more con- stricted, or marked with n u m e r o u .s transverse riujKs, and the bark fis- sured or breaking from the white woody portion at frequent intervals. Collection, prices, and iiscf.—The roots of both species are collected in autunui. The price ranges from 2 to 4 cents a pound. Indian-physic or bow- man's root, as tliesc names imply, was a popu- lar remedy with the In- dians, who used it as an emetic. From them the white settlers learned of its properties, and it is pie. 'ild indigo (-K<(p//»ia ^Hrfoiw), braiich showing flowers still used for its emetic- and seed pods. (Modified from Barton's Vegetable Materia action. This drug was at Medica.) one time otticial in the United States Pharmacopoeia, from 1820 to 1880. action is said to resemble that of Its AVILD IXDIGO. Baptixid tinctoriti (L.) R. Br. Other common ho/»—P>aptisia. indigo-weed, yellow indigo. American indigo, yellow broom, indigo-broom, clover-broom, broom-clover, horsefly-weed, shoofly, rattlebusb. Habitat and ranc/e.—Thin native herb grows on dry, poor land, and is found from Maine to ]^Iinnesota, south to Florida and Louisiana. Description of y^/o/zf.—Many who have been brought up in the country will recognize in the wild indigo the plant so frequently used by farmers, especially in Virginia and Maryland, to keep flies away from horses, bunches of it being fa
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