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57 birthwort family species
Asarum canadense
Asarum caudatum
Asarum marmoratum
Aristolochia macrophylla
Asarum europaeum
Aristolochia serpentaria
Aristolochia tomentosa
Asarum wagneri
Aristolochia clematitis
Asarum hartwegii
Asarum arifolium
Asarum shuttleworthii
Saruma henryi
Aristolochia trilobata
Aristolochia philippinensis
Aristolochia littoralis
Aristolochia californica
Asarum splendens
Asarum naniflorum
Asarum rhombiformis
Aristolochia arborea
Aristolochia lingulata
Asarum rosei
Asarum sorriei
Asarum speciosum
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