Rattlesnake-root.Prenanthes altissima.
Found during August and September on the edge of dark woods, and in damp places, that are shaded.
The stalk, often about 3 feet high, sometimes attains to more than man’s stature; it is very erect, branches only for flowers, is leafy, round, firm-fibred, and smooth. Green in color.
The root-leaves are large (2 or 3 inches in length), wedge-shaped, or 3- to 5-divided; the upper leaves are smaller, varying from a wedge or heart-shape to a long-pointed oval. They all have entire, or faintly notched margins, and the midribs, shining above, are rough beneath. They are set on stems, which are sometimes provided with narrow spreading margins; thearrangementis alternate, with a certain interval between.
The flower is small, “strap-shaped,” with a square notched tip; cream-white in color. 5 or 6 are included in a tubular cup, composed of a close-folded row of narrow, green or purplish, pale, leafy parts; these cups are set nodding on slight foot-stems, and arranged in small irregular groups, on short branches, which form a long, irregularly arranged terminal spike.
The blossoms are so small they are quite out of proportion to the height and strength of the stalk; their habit is scattering, and only a few heads open at the same time. The plant is most effective when all its stiff little downy seeds are spreading themselves for flight.