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Silphium terebinthinaceum PRAIRIE DOCK (5146941297)

Image of rosinweed

Description:

Summary[edit] Description: field image of Silphium terebinthinaceum PRAIRIE DOCK at the James Woodworth Prairie Preserve - a thick stand of basal leaves, indicating many individual specimen, at full open; these leaves at about 18 inches (46 cm) tall by 9-12 inches (23-30 cm) wide are unique and distinct. Date: 31 May 2010, 08:02. Source: Silphium terebinthinaceum PRAIRIE DOCK. Author: Frank Mayfield from Chicago area, USA.

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Frank Mayfield
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