Originally: any of various plants reputed to have universal healing powers, esp. Opopanax chironium. Later (in form Panax): a genus of perennial…

= petty morel, n.

A genus of trees, shrubs, and herbs, the type of the family Araliaceæ; also, a plant of this genus.

U.S. American spikenard, Aralia racemosa.

(a) spikenard, Aralia racemosa; (b) either of two weeds, corn gromwell, Lithospermum arvense, and Mexican clover, Richardia scabra (now rare).

A name for two species of Aralia: the small prickly tree Hercules' club, A. spinosa, and the Wild Sarsaparilla, A. nudicaulis.

With distinguishing word: any of various plants of other genera, typically having roots used in herbal medicine; esp. (in full Siberian ginseng) Eleut…