with …
buds have inner-scale=hairy, between 2 outer-scales;          twigs=hairy
🗻︎ European mountain ash  Sorbus aucuparia
buds have inner-scale=hairy, between 2 sticky outer-scales;  twigs=smooth
🗻︎ American mountain ash  Sorbus americana

buds=smooth, red-brown, stalked, covered like a clam (valvate or duckbill);  pith=​triangular
European black alder  Alnus glutinosa

bud scales=overlapping;  leaf scars have single bundle scar;  fruit may persist
American persimmon  Diospyros virginiana

bud scales=overlapping;  leaf scars have ≥3 bundle scars;  twigs+buds=​chestnut-brown;  pith=⯂ 5-sided;  many raised white lenticels
🌰︎ American chestnut  Castanea dentata

buds=red or red+green;  bud scales=​overlapping, slightly hairy;  leaf scars have ≥3 bundle scars
white basswood  Tilia heterophylla
buds=red or red+green;  bud scales=​overlapping, not hairy;      leaf scars have ≥3 bundle scars
American basswood  Tilia americana