Prairie Dock

Silphium terebinthinaceum


How it's classified:

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How it looks:

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June July August September

Where, when and how often it grows and if it's native to Fermilab:

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 Native to Fermilab:



The huge elephant-ear leaves are its most distinctive feature. Prairie dock has flowers at the top of smooth, naked stems, while compass plants have leaves and flowers on the hairy stem.

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Last Update: May 18, 1998