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2017 collection trip

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RCU

BRW

DIA

WIN

BAR

AAL

LCA

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Sunflower plants growing in typical ruderal environments. Up: La Carlota (LCA), Córdoba, down: Colonia Barón (BAR), La Pampa

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Population from Diamante (DIA), Entre Rios, the wettest area where H. annuus is naturalized in Argentina. 

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Helianthus petiolaris growing nearby cultivated and wild H. annuus. Natural hybrid zone in Winifreda, (WIN), near Colonia Barón.

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Weedy population (BRW) growing in a maize field near to Tres Arroyos, southeastern Buenos Aires. This population is a natural crop-wild hybrid, probably introduced from Colonia Barón. 

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