ruderal

noun

1. Any plant growing in rubbish or very poor soil
2. A plant tending to volunteer in disturbed soil.

adj

1. That grows in rubbish or poor soil

   “Rafinesque perfected his variant of this honorable philosophy while botanizing in the literal backyards of my childhood, examining ruderal plants I've known all my life, and so I have appropriated it from him, with minor tweaks.”