My work has been primarily with gumweed and hesperaloe.
New crops can contribute to the diversification of agriculture.
In the arid and semiarid lands in particular, crops that can be grown profitably with low water applications would be of great benefit. These species produce abundant resin on the surfaces of their flower heads, leaves, and stems. These products are used in inks, adhesives, tackifiers, sizings, and many other products. Grindelia camporum . Resin is most abundant in the flower heads.