United States, Illinois, DuPage, Morton Arboretum, Hidden Lake Forest Preserve, SE corner of St. Hwy. 53 and Butterfield Rd. Along marsh area between DuPage R. and artificial lake.
TRS: T39N R36E S36NW 1/4, NW 1/4
Typha; SAlix; Populus; Scirpus
Flower: N Fruit: Y Vegetation: Y Bud: N
Perennial, locally common, 1-1.5 m tall in unmowed area near edge of wet meadow, rhizomatous, leaves slightly scabrous, white disk flowers. Inflorescence and leaves, stems and roots for testing.