Willow Salix 400 Cold and temperate regions. All species look alike. Yellow Poplar Liriodendron 2 Eastern North America and China. Both species look alike. Yellowwood Podocarpus 94 Southern temperate through tropics to West Indies and Japan.
All species look alike.
Yew Taxus 7 Northern temperate to central Malaysia and Mexico. All species look alike. Taxa listed by genus. Species from Europe and western North America can sometimes be separated from the rest. Acacia Acacia 1200 Tropics.