Chrysogonum virginianum
© 2005 zen Sutherland
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Chrysogonum virginianum
© 2006 Lindley Ashline
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Chrysogonum virginianum
© 2006 Thomas Barta
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Lindheimera texana
© 2006 Marcia Cirillo
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Berlandiera lyrata
© 2007 Ronnie Pitman
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Silphium perfoliatum
© 2005 zen Sutherland
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Silphium laciniatum
© 2007 Brian Peterson
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Silphium perfoliatum
© 2007 Scott
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Silphium perfoliatum
© 2005 zen Sutherland
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Borrichia frutescens
© 2007 Jen
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Euptoieta claudia
© 2007 Ronnie Pitman
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Verbesina encelioides
© 2007 Josh
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Verbesina virginica
© 2007 Janet
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Podachaenium eminens
© 2007 Tony
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Echinacea purpurea
© 2005 abotman
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Echinacea purpurea
© 2006 Kat
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Echinacea purpurea
© 2006 Kat
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Echinacea purpurea
© 2006 Kat
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Tithonia rotundifolia
© 2006 Tim Waters
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Silphium terebinthaceum
© 2006 Tim Waters
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Rudbeckia hirta
© 2006 Jenn Forman Orth
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Wedelia trilobata
© 2006 David Midgley
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Rudbeckia hirta
© 2006 Van Swearingen
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Ratibida columnifera
© 2006 Josh
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Wedelia texana
© 2006 Josh
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Lindheimera texana
© 2007 Josh
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Verbesina virginica
© 2007 Josh
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Berlandiera lyrata
© 2007 Josh
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Berlandiera betonicifolia
© 2008 Josh
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Calyptocarpus vialis
© 2008 Josh
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Rojasianthe superba
© 2006 Eric in SF
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Rojasianthe superba
© 2006 Eric in SF
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Rojasianthe superba
© 2006 Eric in SF
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Geraea canescens and Phacelia calthifolia
© 2005 Dawn Endico
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Montanoa grandiflora
© 2005 Eric in SF
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Rudbeckia nitida
© 2005 Gertrud K.
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Helianthus annuus
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Ambrosia trifida
© Ted Bodner, Southern Weed Science Society, United States
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Ambrosia trifida
© 2005 zen Sutherland
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Echinacea angustifolia
© 2003 gwarcita
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