 Similarly, the capacity of "S. lepidophylla" for revival on rehydration allows it to resurrect and resume growth after long periods of drought.The striking feature of "Selaginella lepidophylla" is its adaptation to conditions of prolonged drought in its natural environment.It deploys the physiological strategy of drying up and rolling inwards in the absence of water to form a ball, and can survive for up to several years, and lose up to 95% of its moisture content, without suffering damage.