• Nyssa Linnaeus, 1753 [Family: Nyssaceae]
• Nyssa Simon, 1864 accepted as Nyssus Walckenaer, 1805 [Family: Agelenidae]
• Nyssa acuminata Small accepted as Nyssa ogeche Bartr. ex Marsh.
• Nyssa aquatica Linnaeus
• Nyssa biflora Walt.
• Nyssa ogeche Bartr. ex Marsh.
• Nyssa sylvatica Marsh.
• Nyssa uniflora Wangenh. accepted as Nyssa aquatica Linnaeus
• Nyssa ursina Small
• Nyssaceae de Jussieu ex Dumortier, 1829
• Nyssachromis Eccles & Trewavas, 1989 (uncertain)
• Nyssanthes R. Brown, 1810
• Nyssapollenites F. Thiergart ex R. Potonié, 1960 †