Asteraceae - Evolution

Evolution

Diversification of Asteraceae appears to have taken place roughly 42-36 million years ago, the stem group perhaps being up to 49 million years old.

It is still unknown whether the precise cause of their great success was the development of the highly specialised capitulum, their ability to store energy as fructans (mainly inulin), which is an advantage in relatively dry zones, or some combination of these and possibly other factors.

Read more about this topic:  Asteraceae

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Famous quotes containing the word evolution:

    As a natural process, of the same character as the development of a tree from its seed, or of a fowl from its egg, evolution excludes creation and all other kinds of supernatural intervention.
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