Wales INNS portal

This page provides information on the 348 invasive non-native species currently of most interest to Wales
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WFD UKTAG impact: High
Lifeforms: Plants
Species list: INNS - Wales Priority Species for Action

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Showing 1 - 13 of 13 taxa

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Azolla filiculoides Lam. – Water Fern non-native

Species, Fern, Freshwater
Rhedynen y Dŵr, Rhedyn y Dŵr

Establishment status: GB Establishment Status - Established

Priority species for Wales: Long-term management
- Occurrences: 360
Crassula helmsii (Kirk) Cockayne – New Zealand Pigmyweed non-native

Species, Flowering plant, Freshwater
New Zealand Pygmyweed, Corchwyn Seland Newydd, mion-luibh Shealainn Nuaidh

Establishment status: GB Establishment Status - Established

Priority species for Wales: Long-term management
- Occurrences: 907
Fallopia japonica (Houtt.) Ronse Decr. – Japanese Knotweed non-native

Species, Flowering plant, Freshwater, terrestrial
Clymog Japan

Establishment status: GB Establishment Status - Established

Priority species for Wales: Long-term management
- Occurrences: 21,226
Heracleum mantegazzianum Sommier & Levier – Giant Hogweed non-native

Species, Flowering plant, Freshwater, terrestrial
Efwr Enfawr

Establishment status: GB Establishment Status - Established

Priority species for Wales: Long-term management
- Occurrences: 781
Hydrocotyle ranunculoides L. f. – Floating Pennywort non-native

Species, Flowering plant, Freshwater
Dail-Ceiniog Arnofiol

Establishment status: GB Establishment Status - Established

Priority species for Wales: Management
- Occurrences: 46
Impatiens glandulifera Royle – Himalayan Balsam non-native

Species, Flowering plant, Freshwater, terrestrial
Indian Balsam, Policeman's Helmet, Penwisg Ddur Heddwas, Cap Dur Heddwas, Ffromlys Chwarennog, Jac y Neidiwr

Establishment status: GB Establishment Status - Established

Priority species for Wales: Long-term management
- Occurrences: 15,207
Lagarosiphon major (Ridl.) Moss ex V.A. Wager – Curly Waterweed non-native

Species, Flowering plant, Freshwater
Pib-Flodyn Crych, Ffugalaw Crych

Establishment status: GB Establishment Status - Established

Priority species for Wales: Long-term management
- Occurrences: 243
Ludwigia grandiflora (Michx.) Greuter & Burdet – Water Primrose non-native

Species, Flowering plant, Freshwater
Establishment status: GB Establishment Status - Established

Priority species for Wales: Management
- Occurrences: 1
Lysichiton americanus Hultén & H. St. John – American Skunk-cabbage non-native

Species, Flowering plant, Freshwater, terrestrial
Skunk Cabbage, Pidyn-y-Gog Americanaidd

Establishment status: GB Establishment Status - Established

Priority species for Wales: Long-term management
- Occurrences: 434
Myriophyllum aquaticum (Vell.) Verdc. – Parrot's-feather non-native

Species, Flowering plant, Freshwater
Parrot's Feather, Pluen Parot

Establishment status: GB Establishment Status - Established

Priority species for Wales: Long-term management
- Occurrences: 255
Myriophyllum heterophyllum Michx. – Various-leaved Water-milfoil non-native

Species, Flowering plant, Freshwater
Water-Milfoil

Establishment status: GB Establishment Status - Established

Priority species for Wales: Prevention
- Occurrences: 0
Rhododendron ponticum L. – Rhododendron non-native

Species, Flowering plant, Freshwater, terrestrial
Rhododendron Wyllt

Establishment status: GB Establishment Status - Established

Priority species for Wales: Long-term management
- Occurrences: 9,377
Rhododendron ponticum x Rhododendron maximum

Species hybrid, Flowering plant, Freshwater
Priority species for Wales: Long-term management
- Occurrences: 0