8 
DESCRIPTION OF MEDICINAL PLANTS. 
tinged with rose, with the fragrance of hyacinths. FI. 
April. Light rich soil in Cumberland Mountains; in large 
quantities, wherever it occurs. Collect the tubers. 
CRUCIFERiE. (Mustard Family.) 
Nasturtium officinale, R. Br. Aquatic herb, perennial, preferring 
cool springs and running water. Stems spreading and root- 
ing ; leaves pinnate; leaflets 3-11, roundish or oblong, 
nearly entire ; flower cruciform, tetradynamous, sepals and 
petals 4 ; stamens 6, two of them shorter. Fruit a linear 
pod, 6-8" long, ascending, on slender widely spreading pedi- 
cels. FI. May. Over the State, frequent. Collect the herb 
in or before flowering. 
Capsella Bursa-pastoris, Moench. Shepherd’s Purse. A homely 
weed 8-12' high, annual, with small white inconspicuous 
flowers, root leaves clustered, pinnatified, stem-leaves arrow- 
shaped, sessile. Pod obcordate-triangular, flattened contrary 
to the narrow partition. Everywhere. Flowers in early 
spring. The whole plant, collected in flowering season. 
CISTACEyE. (Rock-rose Family.) 
Helianthemum Canadense, Michx. Rock- rose. Frost Weed. 
* 
Low, prostrate, subshrubby plants, preferring silicious soil 
and open sunny spots, with golden yellow 5-petaled flowers, 
which are solitary ; the small secondary flowers clustered in 
the axils of the small leaves, which are hairy pubescent on 
the lower side. The larger flowers are V wide, expanded 
and deciduous after they had but once expanded in sunshine. 
Dry, sterile hillsides in East Tennessee. April-May. The 
herb, collected in flower. 
VIOLACEiE. (Violet Family.) 
Viola pedata, L. Birdfoot Violet. Low, perennial; the 
flowers on short peduncles directly from the root. Leaves 
3-5 divided, the lateral divisions 2-3 parted, all linear or 
narrowly spatulate, sometimes 2-3 toothed or cut at the 
