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Showing 1 - 20 of 61 results

  1. Groenlandia J. Gay

    Genus, Flowering plant

  2. Groenlandia densa (L.) Fourr. – Opposite-leaved Pondweed

    Species, Flowering plant, Freshwater

    Opposite Pondweed, Dyfrllys Cyferbynol, Dyfrllys Cyferbynddail, Dyfrllys Tewdws

  3. Potamogeton L. – Pondweed

    Genus, Flowering plant, Freshwater, terrestrial

  4. Potamogeton acutifolius Link – Sharp-leaved Pondweed

    Species, Flowering plant, Freshwater

    Dyfrllys Meinddail, Dyfrllys Dail Llym, Dyfrllys Dail Llymion

  5. Potamogeton alpinus Balb. – Red Pondweed

    Species, Flowering plant, Freshwater

    Reddish Pondweed, Dyfrllys Coch

  6. Potamogeton alpinus x crispus = P. x olivaceus Baagøe ex G. Fisch. – Graceful Pondweed

    Species hybrid, Flowering plant, Freshwater

    Dyfrllys Gosgeiddig

  7. Potamogeton alpinus x perfoliatus = P. x prussicus Hagstr.

    Species hybrid, Flowering plant, Freshwater

  8. Potamogeton alpinus x praelongus = P. x griffithii A. Benn.

    Species hybrid, Flowering plant, Freshwater

  9. Potamogeton berchtoldii Fieber – Small Pondweed

    Species, Flowering plant, Freshwater

    Slender Pondweed, Dyfrllys Bach, Dyfrllys Eiddil

  10. Potamogeton berchtoldii x acutifolius = P. x sudermanicus Hagstr.

    Species hybrid, Flowering plant, Freshwater

  11. Potamogeton coloratus Hornem. – Fen Pondweed

    Species, Flowering plant, Freshwater

    Plantain-Leaved Pondweed, Dyfrllys y Gors Galchog, Dyfrllys y Fignen

  12. Potamogeton coloratus x berchtoldii = P. x lanceolatus Sm.

    Species hybrid, Flowering plant, Freshwater

  13. Potamogeton coloratus x gramineus = P. x billupsii Fryer

    Species hybrid, Flowering plant, Freshwater

  14. Potamogeton compressus L. – Grass-wrack Pondweed

    Species, Flowering plant, Freshwater

    Wrack-Like Pondweed, Dyfrllys Cywasg, Dyfrllys Camlaswellt

  15. Potamogeton crispus L. – Curled Pondweed

    Species, Flowering plant, Freshwater

    Curly Pondweed, Dyfrllys Crychlyd, Dyfrllys Danhe, Dyfrllys Crych, Dyfrllys Crychion

  16. Potamogeton epihydrus Raf. – American Pondweed

    Species, Flowering plant, Freshwater

    Lìobhag Aimeireaganach, Dyfrllys America

  17. Potamogeton filiformis Pers. – Slender-leaved Pondweed

    Species, Flowering plant, Freshwater

    Dyfrllys Meinddail, Dyfrllys Arfor

  18. Potamogeton filiformis x pectinatus = P. x suecicus K. Richt. – Swedish Pondweed

    Species hybrid, Flowering plant, Freshwater

    Dyfrllys Sweden

  19. Potamogeton friesii Rupr. – Flat-stalked Pondweed

    Species, Flowering plant, Freshwater

    Dyfrllys Gwastatgoes

  20. Potamogeton friesii auct., non Rupr.

    Species pro parte, Flowering plant, Freshwater