Rudbeckia hirta (IMAGE)
Caption
Rudbeckia hirta, commonly known as black-eyed Susan, grows across the lower 48 states but differs in its climate sensitivity in different regions. Dark red signifies states in which this species exhibits the greatest climate sensitivity and dark blue delineates states where the same plant is minimally sensitive to climate.
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Graphic by Weiqing Qu. Public domain photo by yamatsu
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