2. A. spino'sa, L. Shrub or low tree ; stem and petioles prickly ;
leaves bipinnately compound ; umbels in a very large much-branched
panicle.
PiacKLT Aralia. Angelica Tree. Hercules' Club.
stem unbranched, prickly below, 10 -20 and even 60 feet high. Leaves crowded at the
summit of the stem, 2-4 feet long ; leaflets ovate, acuminate, serrate, somewhat glaucous
below. Flowers white.
Pennsylvania, South and West. June -August.
Ohs, This striking species is sometimes seen in cultivation ; at the
North it is a low tree, but in the Southern States it sometimes attains
the height of 40 or even 60 feet, its unbranched stems bearing the
crowded leaves at their summits, having a palm-like appearance. The
bark, root, and berries, have been used in medicine ; they are aromatic
and stimulant like those of the preceding species. *

3. A. nudicaulis, L. Stem very short, scarcely rising above ground ;
bearing a single long-stalked leaf, and a shorter naked scape, with' 2 - 7
umbels.
Naked-stem Aralia. Sarsaparilla. False Sarsaparilla.
Root creeping, thickish aitd long, somewhat aromatic but mawkish. SUm scarcely
more than the crown of the root. Leaf on an erect petiole 6-12 inches long, 3-parted at
summit ; each division 2-5 inches in length, and bearing 5 odd-pinnate subsessile leaflets.
Scape 4k -S inches high, divided at summit into 2-7 smoothish pedtmdeSy about 2 inches
long, each bearing a naked, many-flowered, globose umbel, an inch or an inch and a half
in diameter. Berries torulose, purplish black when mature.
