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Key to families | Table of families and genera




Key to Platanus

1. Leaf lobes generally < 1/3 blade, terminal generally as long as wide, margins few- to many-toothed; stipules generally shed by leaf maturity; heads (1)2(3); stigma brown-maroon, densely covered with tan hairs; widely cultivated, sometimes escaping ..... [P. ×hispanica]

1' Leaf lobes generally >= 1/3 blade, terminal generally much longer than wide, margins 0(few)-toothed; stipules generally not shed by leaf maturity; heads (1)2–7; stigma ± maroon, glabrous; native ..... P. racemosa

