Xerophyta

Xerophyta is a genus of flowering plants in the family Velloziaceae. It was named in 1789 by de Jussieu. It is native to Africa, Madagascar, and the Arabian Peninsula. Some species in this genus are poikilochlorophyllous plants. This means that during dry climatic conditions, they lose chlorophyll and cease photosynthesis and transpiration. Thus they are extremely tolerant of desiccation . Hence the name Xerophyta, from Ancient Greek ξηρός (xeros, "dry") and φυτά (phutá), plural of φυτόν (phutón, “plant”). Sequencing of the genome of Xerophyta viscosa allowed to propose that the mechanism of desiccation tolerance in these plants is achieved by employing the genetic repertoire used by desiccation-tolerant seeds. Species formerly included moved to other genera: Barbaceniopsis Nanuza Vellozia...read more on Wikipedia.