Section 39561 Of Article 2. Alternative Procedures From California Government Code >> Division 3. >> Title 4. >> Part 2. >> Chapter 13. >> Article 2.

. The legislative body may declare by resolution as public nuisances, and abate:
  (a) All weeds growing upon the streets, sidewalks, or private property in the city.
  (b) All rubbish, refuse, and dirt upon parkways, sidewalks, or private property in the city.