Minn. Stat. § 18H.18
Subd. 1. Restrictions on collecting.
No person shall distribute the state flower (Cypripedium reginae), or any species of lady slipper (Cypripedieae), any member of the orchid family, any gentian (Gentiana), arbutus (epigaea repens), lilies (Lilium), coneflowers (Echinacea), bloodroot (Sanguinaria Canadensis), mayapple (Podophyllum peltatutum), any species of trillium, or lotus (Nelumbo lutea), which have been collected in any manner from any public or private property without the written permission of the property owner and written authorization from the commissioner.
Subd. 2. Collection without sale.
Wildflower collection from public or private land for the purpose of transplanting the plants to a person's private property and not offering for immediate sale, requires the written permission from the property owner of the land on which the wildflowers are growing.
Subd. 3. Collection with intent to sell or distribute wildflowers.
(b) The wildflowers listed in this section must not be collected and sold commercially unless the plants are: