Since we were thwarted by severe storms last year, we will make another attempt at this trip. One of West Tennessee’s botanical jewels, Carroll Cabin Barrens State Natural Area harbors one of just two state populations of Great Plains ladies’-tresses (Spiranthes magnicamporum). These orchids are the latest-blooming of all our native orchids and occur in widely scattered prairie relicts in the South that are disjunct from the main populations found in the upper Midwest. If we are lucky (and there…