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2017 collection trip
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RCU
BRW
DIA
WIN
BAR
AAL
LCA
Sunflower plants growing in typical ruderal environments. Up: La Carlota (LCA), Córdoba, down: Colonia Barón (BAR), La Pampa
Population from Diamante (DIA), Entre Rios, the wettest area where H. annuus is naturalized in Argentina.
Helianthus petiolaris growing nearby cultivated and wild H. annuus. Natural hybrid zone in Winifreda, (WIN), near Colonia Barón.
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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