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What is the vegetation that grows without the help of man called? 

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The majority of herbaceous neophytes are characteristic of man-disturbed habitats and are only infrequently observed in natural vegetation types.
Understanding the biology of interfering vegetation, stand development, and limitations of weed-control practices should help managers implement effective vegetation managers implement effective vegetation management.
On these altered, man-made landforms, the availability of seed may be the bottleneck to achieve vegetation cover comparable to undisturbed vegetation in the surrounding.
The results indicated that vegetation in a man-initiatedS.
It is suggested that, over time, the vegetation c...
The influence of man on vegetation had started already before the beginning of our era, but there is a sudden increase of this influence (e. g., increase of Dodonaea , decrease of Quercus and Urticaceae) somewhere around 2,000 B. P.
It could thus indicate local clearance of vegetation by man.
We argue that, rather than characterizing studies of vegetation change on the basis of what distinguishes them from one another, plant ecologists would benefit from concentrating on what such studies have in common.
The results indicate that 23 of the 106 vegetation types have each been reduced by over 50% by man-induced land uses.

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