CHAPTER 58
NOXIOUS WEEDS
21—58.1(317) Definition. As used in this chapter, “sterile” means any plant or variety that is incapable of reproduction or which is either noninvasive or nonaggressive in that the plant does not spread into areas where it was not initially planted.
21—58.2(317) Purple loosestrife. The following Lythrum (purple loosestrife) cultivars are derived from Lythrum virgatum that are sterile or nonaggressive and can be sold for planting in ornamental gardens.
	1.	Rose queen
	2.	The rocket
	3.	Morden pink
	4.	Morden gleam
	5.	Morden rose
	6.	Dropmore purple
	7.	Columbia pink
Any person selling or offering for sale any or all of the above-listed varieties shall prominently display a sign to inform purchaser it is legal to plant the above-listed Lythrum virgatum in “ornamental gardens” only.
21—58.3(317) Records. A person selling or offering for sale any or all of the varieties listed in rule 58.2(317) shall retain in the person’s possession records on the inventory of such varieties acquired, sold, or retained by the person. These records shall include the identity and address of the supplier of any of the varieties. These records shall be retained for a period of three years and shall be available to the department for inspection during the person’s regular business hours.
These rules are intended to implement Iowa Code section 317.25.
[Filed emergency 4/3/91 after Notice 12/26/90—published 5/1/91, effective 4/3/91]