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Lamiaceae

 7-Physostegia habit

[FMP-field: image]
A plant of high quality prairie in Illinois, Physostegia virginiana (Obedient Plant) has quite large flowers for a member of the Lamiaceae, up to an 1 inch (2.5 cm) long.
Photo by K. R. Robertson at Paintbrush Prairie, Cook County, Illinois.
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