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Showing 61 - 80 of 183 results

  1. Persicaria vivipara (L.) Ronse Decr. – Alpine Bistort

    Species, Flowering plant, Freshwater

    Viviparous Bistort, Canwraidd y Mynydd, Neidrlys Mynyddig, Llys y Neidr Fynyddig

  2. Persicaria wallichii Greuter & Burdet – Himalayan Knotweed non-native

    Species, Flowering plant, Freshwater, terrestrial

    Y Ganwraidd Himalaiaidd, Clymog yr Himalaya

  3. Persicaria weyrichii (F. Schmidt) Ronse Decr. – Chinese Knotweed non-native

    Species, Flowering plant, Terrestrial

    Canwraidd Tsieina

  4. Polygonum L. – Knotgrass

    Genus, Flowering plant, Freshwater, terrestrial

  5. Polygonum arenarium Waldst. & Kit. – Lesser Red-knotgrass non-native

    Species, Flowering plant, Terrestrial

    Y Canclwm Coch Bach

  6. Polygonum arenarium subsp. pulchellum (Loisel.) Thell.

    Subspecies, Flowering plant

  7. Polygonum arenastrum Boreau – Equal-leaved Knotgrass non-native

    Species, Flowering plant, Terrestrial

    Y Canclwm Manddail, Clymog â Dail Bach

  8. Polygonum aviculare L. – Knotgrass

    Species, Flowering plant, Freshwater

    Knotgrass agg., Clymog, Y Canclwm, Berw'r Ieir, Berwr yr Iâr, Canclwm, Berw'r Iâ, Gwaedlys, Llysiau y Milwr, Clymlys, Treigledlys

  9. Polygonum aviculare agg. L. sensu lato

    Species sensu lato, Flowering plant, Freshwater

  10. Polygonum bellardii Waldst. & Kit.

    Species, Flowering plant

  11. Polygonum boreale (Lange) Small – Northern Knotgrass

    Species, Flowering plant

    Canclwm y Gogledd

  12. Polygonum cognatum Meisn. – Indian Knotgrass non-native

    Species, Flowering plant, Terrestrial

  13. Polygonum corrigioloides Jaub. & Spach

    Species, Flowering plant

  14. Polygonum equisetiforme Sibth. & Sm.

    Species, Flowering plant

  15. Polygonum graminifolium Wierzb. ex Heuff.

    Species, Flowering plant

  16. Polygonum maritimum L. – Sea Knotgrass

    Species, Flowering plant

    Canclwm Arfor, Canclwm yr Arfor

  17. Polygonum oxyspermum C.A. Mey. & Bunge – Ray's Knotgrass

    Species, Flowering plant

    Canclwm Ray, Clymog Eiddil Graean Garw

  18. Polygonum oxyspermum subsp. oxyspermum C.A. Mey. & Bunge

    Subspecies, Flowering plant

  19. Polygonum oxyspermum subsp. raii (Bab.) D.A. Webb & Chater

    Subspecies, Flowering plant

  20. Polygonum patulum M. Bieb. – Red-knotgrass

    Species, Flowering plant

    Red Knotgrass, Y Canclwm Coch