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Colonizing or thriving in areas that have been disturbed, as by fire or cultivation.
A species, especially a plant, that colonizes or thrives in disturbed areas.

[New Latin rūderālis, from Latin rūdus, rūder-, rubble, broken stones; possibly akin to German Grieß, grit, semolina, Lithuanian grūdas, grain, and Russian gruda, pile.]


(Botany) a plant that grows on waste ground
(Botany) growing in waste places
[C19: from New Latin rūderālis, from Latin rūdus rubble]


(ˈru dər əl)
1. (of a plant) growing in waste places, along roadsides, or in rubbish.
2. a ruderal plant.
[1855–60; < New Latin rūderālis < Latin rūder- (s. of rūdus broken stone, rubble]
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decumbens) which have a short-term seed bank, weakly significant for ruderals from the Asteraceae and Rubiaceae with a more constant seed bank, and absent for the Melastomataceae with a persistent seed bank.
As regards plant strategy types, generalists (CSR-strategy), stress-tolerant species, and ruderals were dominant in the herbaceous vegetation (Table 2).
This is surprising because ruderals dominate the soil seed bank in both meadows (Lang and Halpern, 2007) and forests in this region (Kellman, 1970; Halpern et al.
Ruderals are fast-growing annuals or short-lived perennials that can colonize disturbed environments.
The first axis separates native dominant and late seral species plots, at the positive end of the axis, from introduced ruderal species plots at the negative end of the axis and native ruderals at just above zero (Fig.
But the intermediate group, stress-tolerant ruderals (S-R), is represented by Acer campestre, Malus sylvestris, Pyrus communis, Prunus padus, and Prunus avium.
Both annual ruderals and long-lived perennials have buffering systems for short-term variation in current seed supply.
Many higher elevation ruderals of the Ru'us alJibal are absent in the Hajar Mountains, including the Jebel Akhdar