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Ageratina altissima var. altissima (White Snakeroot), bark, stemOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), flower, fullOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), flower, fullOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), fruit, matureOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), fruit, matureOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), habit, fallOctober 5 2012
Brown, Deborah J. G.
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Ageratina altissima var. altissima (White Snakeroot), habit, fallOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), habit, fallOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), habitatOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), infructescenceOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), leaf, lower surfaceOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), leaf, lower surfaceOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), leaf, upper surfaceOctober 6 2012
Hedborn Jr., Edward A.
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Ageratina altissima var. altissima (White Snakeroot), leaf, upper surfaceOctober 6 2012
Hedborn Jr., Edward A.