Review of the Growth Habits and Restoration Issues for Clitoria fragrans and Polygonella basiramia

摘要

Military training activities, such as tracked vehicle operations and the use of high explosive ordnance, damage soils and vegetation. When federally listed threatened or endangered species are located in areas of destructive military activities, the military is required by law to consult with the U.S. Fish and Wildlife Service to determine the best course of action, which may be either to restrict the military mission or to obtain permission to 'take' a limited number of individuals. At the Avon Park Air Force Range (APAFR), Florida, two listed endangered plant species, Clitoria fragrans Small and Polygonella basiramia (Small) Nesom and Bates, reside in such an area. It would benefit both the plants and the military mission if these two plants could be re-established elsewhere on APAFR property. This review examines what is known about the life history and ecology of C. fragrans and P. basiramia and very little to C. fragrans. Because C. fragrans produces very few seeds and little is known about its required habitat, we believe the best approach is to begin by studying the plant itself to see if the thick horizontal rhizomes (underground stems) on the plant can be used to propagate new plants. More is known concerning seed production and habitat for P. basiramia, and this information can be used as a starting point in developing a restoration program for this species. Preferably, restoration plots should be in oak stands with gaps cleared of competitive vegetation to simulate fire effects. Once the optimum timing and methods for collection are determined, seeds could be collected and propagated in both the field and greenhouse.