Calypso Orchid (Calypso bulbosa), a Wisconsin Threatened plant, is found only in old-growth white cedar swamps. Photo courtesy Tom Gibson

Training is set for April at four regional locations for volunteers interested in searching Wisconsin’s best remaining prairies, savannas and cedar swamps for lost treasure – 322 species of rare plants. From delicate orchids to python-like parasitic plants that strangle their hosts, volunteers for the Rare Plant Monitoring Program will get to see unique flora up close in some of Wisconsin's most spectacular settings.