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- Included species (for The Plant List, ):
- H. lupulus, H. scandens, H. yunnanensis
- Note: only species listed as 'Accepted'
- Included species (for Tropicos, ):
- H. americanus, H. cordifolius, H. japonicus, H. lupulus, H. neomexicanus, H. scandens, H. yunnanensis
- Note: list containing potentially synonyms
This category has the following 4 subcategories, out of 4 total.