Nuphar × porphyranthera is a species of rhizomatous aquatic plant native to Great Britain. It is a hybrid of Nuphar lutea and Nuphar advena.
Description Vegetative characteristics Nuphar × porphyranthera is an aquatic plant with predominantly emerging leaves.Lansdown, R., & Ruhsam, M. (2022). YELLOW WATER LILIES (NUPHAR, NYMPHAEACEAE) IN GREAT BRITAIN: A NEW HYBRID, A REAPPRAISAL OF RECORDS, AND A REVISED STATUS OF N. ADVENA. Edinburgh Journal of Botany, 79, 1-15. Generative characteristics The flowers have 5-6 sepals. The yellow filaments are 4.1–9.9 mm long. The sterile, purple or yellow anthers are 5–11 mm long. The fruit does not develop.
Reproduction Generative reproduction The hybrid is sterile.
Taxonomy Publication It was first described by Lansdown & Ruhsam in 2022. Natural hybridisation Hybridisation occurred after introduction of the non-native Nuphar advena to Great Britain. It hybridised with the native species Nuphar lutea and formed the new hybrid Nuphar × porphyranthera. Type specimen The type specimen was collected from a shaded former gravel pit beneath trees in Ferry Lane, Shepperton, Middlesex, United Kingdom.Nuphar × porphyranthera | International Plant Names Index. (n.d.). Retrieved May 4, 2024, from https://www.ipni.org/n/77317649-1
Ecology Habitat It occurs in ornamental ponds, and in a gravel pit. It doesn't appear to spread into new habitats.British water lily found hiding in plain sight. (n.d.). Royal Botanic Garden Edinburgh. Retrieved May 4, 2024, from https://www.rbge.org.uk/news/articles/british-water-lily-found-hiding-in-plain-sight/
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