(a) Each of the following acts, if performed in connection with the sale, offering for sale, or advertising of sexually reproducible plant material or tubers or parts of tubers, is prohibited, and the Secretary may, if the Secretary determines after an opportunity for hearing that the act is being so performed, issue an order to cease and desist, said order being binding unless appealed under section
2461 of this title:
(1) Use of the words U.S. Protected Variety or any word or number importing that the material is a variety protected under certificate, when it is not.
(2) Use of any wording importing that the material is a variety for which an application for plant variety protection is pending, when it is not.
(3) Use of either the phrase Unauthorized Propagation Prohibited or Unauthorized Seed Multiplication Prohibited or similar phrase without reasonable basis. Any reasonable basis expires one year after the first sale of the variety except as justified thereafter by a pending application or a certificate still in force.
(4) Failure to use the name of a variety for which a certificate of protection has been issued under this chapter, even after the expiration of the certificate, except that lawn, turf, or forage grass seed, or alfalfa or clover seed may be sold without a variety name unless use of the name of a variety for which a certificate of protection has been issued under this chapter is required under State law.