Thursday, June 23, 2011

Cypripedium acaule – Pink Lady's Slipper

Cypripedium acaule

Michael Compagno, an attorney at the South Florida Water Management District, took this striking photograph of the pink lady's slipper in June of this year while hiking a trail in Isle Royale National Park in Michigan. The plant grows in a wide variety of conditions, from lightly shaded to full sun and from wet to dry. However, it has three absolute requirements: highly acidic soil, freedom from the competition of taller plants, and rather cool summer temperatures. Here it is growing with a rich assemblage of plants that includes Clintonia borealis, Cornus canadensis, Coptis trifolia, and Trientalis borealis.

Image © 2011 by Michael Compagno. All rights reserved. Used with permission.