This includes Aceraceae and Hippocastanaceae of Michigan Flora. 

1. Herbaceous vines climbing by tendrils; mature fruits inflated, bladder-like and ±globose.

Cardiospermum

1. Trees or shrubs; fruits hard capsules or samaras, or if inflated, then triangular in cross section and tapered to the apex.

2. Leaves alternate, pinnate-pinnatifid or sometimes bipinnate.

Koelreuteria

2. Leaves opposite, simple and lobed or pinnately or palmately compound.

3. Leaves simple and lobed or pinnately compound; fruit a 2-winged samara.

Acer

3. Leaves palmately compound; fruit a large capsule.

Aesculus