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- Potamogeton perfoliatus (category Potamogeton)hybrids, Potamogeton perfoliatus × P. praelongus (= P. × cognatus Ascherson & Graebner), P. perfoliatus × P. pusillus (= P. × mysticus Morong), P. gramineus3 KB (322 words) - 21:31, 5 November 2020
- Potamogeton gramineus (category Potamogeton)alpinus × P. gramineus (= P. × nericius Hagström), P. gramineus × P. perfoliatus (= P. × nitens Weber [P. × subnitens Hagström]), P. gramineus × P. natans5 KB (516 words) - 21:30, 5 November 2020