Any person who shall willfully and maliciously set on fire, or cause to be set on fire, any timber, underbrush or grass upon state lands, or shall leave or suffer fire to burn unattended near any timber or other inflammable material, shall be deemed guilty of a felony, and upon conviction thereof shall be imprisoned for not more than two years, or fined in a sum not more than one thousand dollars [($1,000)], or both.