GOV §39561.5: “Weeds,” as used in this article, includes any of the following: (a) Weeds which bear seeds of a downy or wingy nature.

“Weeds,” as used in this article, includes any of the following: (a) Weeds which bear seeds of a downy or wingy nature. (b) Sagebrush, chaparral, and any other brush or weeds which attain such large growth as to become, when dry, a fire menace to adjacent improved property. (c) Weeds which are otherwise noxious or dangerous. (d) Poison oak and poison ivy when the conditions of growth are such as to constitute a menace to the public health. (e) Dry grass, stubble, brush, litter, or other flammable material which endangers the public safety by creating a fire hazard.