Haplophyllum may refer to:
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''Haplophyllum'' (millipede), a genus of millipedes in the family
Julidae
Julidae is a family of millipedes in the order Julida, containing more than 600 species in around 20 genera. Its members are largely confined to the Western Palaearctic, with only a few species extending into the Oriental and Afrotropical realms ...
*
''Haplophyllum'' (plant), a genus of plants in the family Rutaceae
{{Genus disambiguation