Verbesina tetraptera (Ortega) A. Gray [ Bidens tetragona Sessé & Moc.]
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Verbesina tetraptera (Ortega) A. Gray [ Helianthus tetrapterus Ortega] [Compositae]
M. Sessé, M. Mociño, Draw. Roy. Exped. New Spain: [Hunt instutute, Turner collection no. 0206] (1787-1803)