Associated organism genera: Quadraspidiotus [4 taxa], Qualea [5 taxa], Quamoclit [2 taxa], Quaternaria [11 taxa], Quebrachia [1 taxon], Queenslandia [2 taxa], Quercus [7561 taxa], Quesada [2 taxa], Quillaja [9 taxa], Quinchamalium [9 taxa], Quintinia [3 taxa], Quisqualis [13 taxa]