leaves with …

leaflets=5;  teeth=irregular and blunt;  end-buds have keel-line;  bruised twigs have disagreeable smell
🌰︎ Ohio buckeye  Aesculus glabra

leaflets=5;  ▴▴▴▴ singly-toothed, regular and fine;  end-buds have no keel-line
◼︎ 🌰︎ yellow buckeye  Aesculus flava

leaflets=7 (usually);  ▲▴▲▴ doubly-toothed;  leaflets have no stalk;  winter buds are sticky;  flowers=white
🌰︎ horse chestnut  Aesculus hippocastanum

Learn more about 🌰︎ buckeye/​horse chestnut genus Aesculus (Aesculus spp.)

Not associated with chestnut  genus Castanea in beech / oak  family Fagaceae.

Instead, part of soapberry  family Sapindaceae.

Uses by native peoples
(Ethnobotany database)

Aesculus hosts caterpillars of 13 species
of butterflies and moths, in some areas.
plant terminology

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