Twigs=thick (≥6 mm) (≥¼ in) AND terminal bud=​conspicuous and ⬮ oval

terminal bud[?]=dark smooth sticky long (≥6 mm) (≥¼ in)
🌰︎ horse chestnut  Aesculus hippocastanum
 or
terminal bud[?]=light-colored or rough or not-sticky or short (<6 mm) (<¼ in) :

Twigs=thin  (<6 mm) (<¼ in)  OR  terminal bud=​inconspicuous or not ⬮ oval

terminal bud[?]=rough+dry;  leaf scars[?]=shield- or oval-shaped, bundle scars [?] make line
ash  genus Fraxinus

leaf scars[?]= angular (V-shaped), each leaf scar has 3 bundle scars [?]
🍁︎ maple  genus Acer

leaf scars [?] join to make line all around twig, each leaf scar has 3 bundle scars [?]
flowering dogwood  Cornus florida