Ceratophyllum platyacanthum species Cham. [ Ceratophyllum pentacanthum species Hayata]
      
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16 224884 Ceratophyllum platyacanthum species Cham. [-1] Ceratophyllaceae
B. Hayata, Icon. Pl. Formos., vol. 8 : p. 130, fig. 57a (1919)