Definition of: grindelia

(grin·dē′lē·ə) noun
1. Any plant of an American genus (Grindelia) of coarse herbaceous or shrubby plants with sessile, rigid leaves and large heads of yellow flowers.
2. The dried leaves and flowering tops of certain species of this plant (G. camporum or G. humilis), yielding a balsam used in the treatment of asthma, bronchitis, and ivy poisoning. Also called gum plant. [<NL, after D.H. Grindel, Russian botanist]