Can you identify this prominent tallgrass prairie plant?

Can you identify what plant this leaf is from?

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Here’s another photo of the same species.  More of you should be able to identify it now.

One of the more distinctive leaves in tallgrass prairie.

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Stumped?

It’s compass plant (Silphium laciniatum).  Here’s a summer photo from Missouri.

Compass plant. Prairie Fork Conservation Area. Missouri.