If you have walked around in the grasslands, you may have noticed strange growths on the sagebrush. These growths, called galls, form when some organism – usually an insect – develops within the plant’s tissues.
If you have walked around in the grasslands, you may have noticed strange growths on the sagebrush. These growths, called galls, form when some organism – usually an insect – develops within the plant’s tissues.