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Vitt, P.; Holsinger, K. E.; Jones, C. S. (2003), "Local differentiation and plasticity in size and sex expression in jack-in-the-pulpit, Arisaema triphyllum (Araceae)", American Journal of Botany, 90 (12): 1729–35, doi:10.3732/ajb.90.12.1729, PMID21653349
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