Wis. Stat. § 134.60
No person may cut for sale in its natural condition and untrimmed, with or without roots, any evergreen or coniferous tree, branch, bough, bush, sapling or shrub, from the lands of another without the written consent of the owner, whether such land is publicly or privately owned. The written consent shall contain the legal description of the land where the tree, branch, bough, bush, sapling or shrub was cut, as well as the name of the legal owner. The written consent or a certified copy of the consent shall be carried by every person in charge of the cutting or removing of the trees, branches, boughs, bushes, saplings or shrubs, and shall be exhibited to any officer of the law, forest ranger, forest patrol officer, conservation warden, or other officer of the department of natural resources at the officer's request at any time. The officer may inspect the trees, branches, boughs, bushes, saplings or shrubs when being transported in any vehicle or other means of conveyance and may investigate to determine whether or not this section has been complied with. The officer may stop any vehicle or means of conveyance found carrying any trees, branches, boughs, bushes, saplings or shrubs upon any public highway of this state for the purpose of making such inspection and investigation, and may seize and hold, subject to the order of the court, any such trees, bushes, saplings or shrubs found being cut, removed or transported in violation of this section. No person may ship or transport any such trees, bushes, saplings or shrubs outside the county where they were cut unless the person attaches to the outside of each package, box, bale, truckload or carload shipped a tag or label on which appears the person's name and address. No common carrier or truck hauler may receive for shipment or transportation any such trees, bushes, saplings or shrubs unless the tag or label is attached. Any person who violates this section shall be fined not less than $10 nor more than $100. Any person who signs any such written consent or certified copy under this section who is not authorized to do so, and any person who lends or transfers or offers to lend or transfer any such written consent or certified copy to another person who is not entitled to use it, and any person not entitled to use any such written consent or certified copy, or who borrows, receives or solicits from another any such written consent or certified copy thereof shall be fined not less than $100 nor more than $500.
Wis. Stat. § 134.60