Self-heal. Heal-all. Prunella vulgaris L. Achenes light to dark brown, slightly roughened, having a diffused luster, slightly flattened, oval or oblong, the base tapering to a small whitish, triangular appendage, outer side convex having dark verticle lines, the other face sloping to the edges from a central ridge, becoming mucilaginous when soaked in water. Native to this country.

NIGHT SHADE FAMILY. SOLANACEAE.

Fig 160. [Jimson Weed. Thorn-apple. Datura Stramonium] L.

Jimson Weed. Thorn-apple. Datura Stramonium L. Pods ovoid, densely prickly, about 4 cm. long; seeds black to brown, flattened, with 6–10 slight irregular elevations, the whole surface covered with minute shallow pits, short kidney shaped, i. e., one edge nearly straight or slightly notched, the remainder of the margin making about two-thirds of a circle. 3–3.5 mm. long. Most likely introduced from Asia. A coarse, poisonous weed found in waste places.

Fig 161. [Purple Jimson Weed. Purple Thorn-apple. Datura Tatula.]

Purple Jimson Weed. Purple Thorn-apple. Datura Tatula. The color of the stems are purple, the flowers and pods nearly the same as those last above; seeds of the two scarcely if at all unlike. Naturalized from tropical America. Waste places.