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A xerophyte (from Ancient Greek ξηρός (xērós) 'dry' and φυτόν (phutón) 'plant') is a species of plant that has adaptations to survive in an environment with little liquid water. Examples of xerophytes include cacti , pineapple and some gymnosperm plants.
Xerophyta is a genus of flowering plants in the family Velloziaceae.It was named in 1789 by de Jussieu. [1] [2] It is native to Africa, Madagascar, and the Arabian Peninsula.[3]
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Not all xerophytes are succulents, since there are other ways of adapting to a shortage of water, e.g., by developing small leaves which may roll up or having leathery rather than succulent leaves. [8] Nor are all succulents xerophytes, as plants such as Crassula helmsii are both succulent and aquatic. [9] The center rosette of Aloe polyphylla
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The tumbleweed diaspore disperses seeds, but the tumbleweed strategy is not limited to the seed plants; some species of spore-bearing cryptogams—such as Selaginella—form tumbleweeds, and some fungi that resemble puffballs dry out, break free of their attachments and are similarly tumbled by the wind, dispersing spores as they go. [4] [5]
A xerophile (from Greek ξηρός : xērós 'dry' and φίλος : phílos 'loving') [1] is an extremophilic organism that can grow and reproduce in conditions with a low availability of water, also known as water activity.
Raunkiær's life-form scheme has subsequently been revised and modified by various authors, [6] [7] [8] but the main structure has survived. Raunkiær's life-form system may be useful in researching the transformations of biotas and the genesis of some groups of phytophagous animals.