ruderal

[roo-der-uhl] Botany.
adjective
1.
(of a plant) growing in waste places, along roadsides or in rubbish.
noun
2.
a ruderal plant.

Origin:
1855–60; < Neo-Latin rūderālis, equivalent to Latin rūder- (stem of rūdus broken stone, rubble) + -ālis -al1

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World English Dictionary
ruderal (ˈruːdərəl)
 
n
1.  a plant that grows on waste ground
 
adj
2.  growing in waste places
 
[C19: from New Latin rūderālis, from Latin rūdus rubble]

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Example sentences
These ruderal areas exhibit varying degrees of past surface disturbance.
Ruderal vegetation is defined as vegetation that survives on disturbed habitat.
Ruderal species are non-native, hardy, and able to grow in highly disturbed areas.
The site is mostly bare except for some small ruderal trees and brush.
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