DESCRIPTION OF MEDICINAL PLANTS. 
7 
5, with 3 bractlets at the base, colored, persistent. Petals 
5, oblong or obovate, incurved, deciduous. Scape naked, 
one-flowered, flowers purple, nodding. FI. June. Rhizome, 
collected in fall. West Tennessee. 
PAPAVERACEiE. (Poppy Family.) 
Sanguinaria Canadensis, L. Bloodroot. Herbaceous plant 
about 6' high, has a thick branching rootstock which creeps 
along under ground, and in early spring sends up from the 
ends of each of the little side-branches a single long-stalked 
leaf, and another stalk, bearing a single flower. The leaf is 
wrapped round the flower-bud when it rises out of the ground, 
and is bluntly 5-9 lobed, roundish at first, but afterward 
kidney-shaped. The flowers are large and conspicuous, and 
have 12 sepals, from 8-12 white petals, about 24 stamens 
with filaments shorter than the petals, and a short style. 
The fruit is an oblong 2-valved capsule. Abundant in rocky 
woodlands with rich leaf-mould. FI. March-April. Root- 
stock collected in fall. 
Argemone Mexicana, L. Mexican Poppy. Annual, herbaceous, 
with prickly bristles and yellow juice. Leaves sessile, sin- 
uate lobed, and with prickly teeth, often blotched with 
white; flowers yellow, sometimes white, short peduncled. 
Sepals 2-3, prickly. Petals 4-6, stigma sessile. Pod ob- 
long, prickly, opening by 3-6 valves at the top. Waste 
places near buildings, vacant lots in towns. Frequent in 
Nashville. The herb is used. 
FUMARIACEiE. (Fumitory Family.) 
Dicentra Canadensis, DC. Squirrel Corn. Low, stemless 
perennial, with ternately compound and dissected leaves, and 
racemous, nodding flowers. Subterraneous shoots bearing 
grain-like tubers (resembling peas or grains of Indian corn, 
yellow) ; petals slightly cohering into a heart-shaped 2-spurred 
corolla, the spurs vex-y short and rounded ; crest of the inner 
petals conspicuous, projecting. Flowers greenish-white, 
