genetic and chemical makeup / state law protecting / state law / /
NaturalFeature
Mississippi River Valley / Iowa lakes / Des Moines River Valley / /
Organization
Minnesota Department of Natural Resources / Minnesota Department of Natural Resources Natural Heritage and Nongame Research Program / Nature Conservancy / Fish and Wildlife Service Reference Service / Environmental Protection Agency / U.S. Fish and Wildlife Service / /
Person
Don Kurz / Tom Sanders / / /
Position
densely packed flower head / tight round flowering head / /