Pondering about Cypripedium reginae.

Since beginning my research at Window Cliffs State Natural Area this year, I have encountered several rare and endangered species. I prefer not to disclose specific coordinates or locations, as this is a fragile ecosystem.

At Window Cliffs, two species stand out to me: Thuja occidentalis (Eastern White Cedar) and Parnassia grandifolia (Bigleaf Grass-of-Parnassus). In other sites, I have observed Cypripedium reginae (Showy Lady's Slipper) associated with these two species, leading me to wonder if C. reginae ever existed at Window Cliffs. The site’s limestone seepage areas appear to provide a characteristic habitat for this orchid. Although I have not yet found this species here, I remain curious about its potential presence.

Cypripedium reginae typically thrives in moist, acidic soils, often found in rich woodlands or along the edges of wetlands. These orchids prefer habitats that maintain a consistent level of moisture, which is often facilitated by limestone seepage areas. The alkaline conditions created by the limestone can foster a unique plant community, providing the right balance of nutrients and drainage essential for C. reginae to flourish. The glacial period left behind several boreal plants on the northern sides of the limestone bluffs, creating unique microhabitats that could support diverse flora, including C. reginae.

Source: Kartesz, J.T., The Biota of North America Program (BONAP). 2015. North American Plant Atlas. Chapel Hill, N.C.

Posted on September 19, 2024 03:37 PM by harriseli195