It is unlawful for any person to wilfully and without authority cut, pull, pluck or otherwise injure any flowers, flowering plants, shrubs or trees growing in or around any park or public street within the city, or wilfully or without authority to tear down, remove, cut or otherwise injure or destroy any gate or fence enclosing any such park or ground, or wilfully injure or destroy any stand, bench, seat or other property situated upon such park or ground. (Prior Code, Chapter 14, as amended)