“Weeds,” as used in this part, means vegetation growing upon streets, sidewalks, or private property in any county, including any fire protection district and may include any of the following:
(a) Vegetation that bears seeds of a downy or wingy nature.
(b) Vegetation that is not pruned or is otherwise neglected so as to attain such large growth as to become, when dry, a fire menace to adjacent improved property.
(c) Vegetation that is 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 in an urbanized portion of an unincorporated area which has been zoned for single and multiple residence purposes.