Key to Wisconsin Hibiscus

• 1a.Distal leaf blades deeply lobed to the base; bractlets and calyces with long bristly hairs; petals 1.5–3 cm long, yellowish to cream with a purple base; annuals H. trionum

• 1b.Leaf blades unlobed or shallowly lobed; bractlets and calyces lacking long bristly hairs; petals 4–8 cm long, pink to white; perennials 2

• 2a.Leaf blades glabrous abaxially; calyces and bractlets glabrous to glabrate H. laevis

• 2b.Leaf blades pubescent abaxially; calyces and bractlets densely stellate pubescent H. moscheutos