We all know one when we see one, or so we think! But these plants have come up with more varied adaptive strategies for conserving and storing water than we give them credit for. The phenomenon of succulence cuts across many plant families. Although there are many plant famililies which boast huge numbers of succulents, like the Euphorbiaceae some families have relatively few, like the Passifloraceae, the passion flower family. These plants have had to adapt to a scarcity of water in their environment or die trying. We know the survivors rose to the occasion. We will never have an appreciation for how many plants died trying!
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