Hydrastis canadensis L.

Ada Hayden Herbarium
Iowa State University
Flora of Iowa
Hydrastis canadensis L.
Lee County: T67N R7W Section 9 SW4 SE4 SE4 SE4
UTM (NAD83, 15T): 613357 East, 4496655 North
40° 36’ 53.5299" North, 91° 39’ 35.9664” West
Shimek State Forest (Lick Creek Unit), owned by the Iowa DNR, is
approximately 5 miles west/southwest of Donnellson and on the Southern
Iowa Drift Plain. 1000+ ramets of Hydrastis canadensis occur in an upland
oak-hickory forest and adjacent stream terrace forest (the latter with Jualans
niara. Ulmus americana and Prunus serotjna). The collection comes from
stream terrace forest at the base of a southeast-facing, moderate slope. Most
ramets are past peak bloom, some are in full bloom, many are fading or
vegetative. The filaments are white. Hydrastis canadensis is associated with
Clavtonia virainica. Dentaria laciniata. Phlox divaricata. Tovara virainianum
and Viola pubescens.
Mark J. Leoschke 2723	May 6, 2008
John Byrd
Collected for the Wildlife Bureau of the Iowa Department of Natural Resources
02752908