It is also famous for a nature reserve of about 90.33 ha with a very rare flora such as Trochetia parviflora which was rediscovered on a mountain slope in 2001, Pilea trilobata which was rediscovered in 2005 and the Mandrinette.
After botanist Philip Burnard Ayres collected the last known specimens in 1863 it was long regarded as lost until 76 individuals were rediscovered in April 2001 by the Mauritian botanists Vincent Florens and Jean-Claude Sevathian, from the Mauritius Herbarium, on a rocky slope of the Corps de Garde six kilometres apart from the type locality.