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Summarized phylogeny of the Aristolochiaceae with representative photographs for the main lineages. (A) Saruma henryi. (B) Asarum canadense. (C) Thottea siliquosa. (D) Aristolochia macrophylla. (E) A. manshuriensis. (F) A. arborea. (G) A. deltantha. (H) A. praevenosa. (I) A. clematitis. (J) A. fimbriata. (K) A. lindneri. (L) A. ringens.
