United States, Illinois, Du Page, The Morton Arboretum Heath collection, P-56/15-85. Collected for the National Cancer Institute - 1996 to 1997. Vouchers for plant samples for Antiads-Anticanceer Testing.
Shrub, straggling, rhizomatous, just past flower, apetalous, many stamens, 1 to 1.5 meter tall, plant from cuttings original source, from Charles C. Deam, Bluffton, Indiana. Sample part: LF TW FL ST. NCI Code 0GDK0308-R-309-S.