Ireland

Common Knotweed

Polygonum arenastrum

Seaside Daisy

Erigeron glaucus

daisybush

Olearia haastii

New Zealand Holly

Olearia macrodonta

Japanese walnut

Juglans ailantifolia

Himalayan Clematis

Clematis montana

Rosy Dewplant

Lampranthus roseus

Australian treefern

Dicksonia antarctica

Pale Yellow-eyed-grass

Sisyrinchium striatum

Waterer's cotoneaster

Cotoneaster watereri

Kokonor cotoneaster

Cotoneaster nitens

Hedge Ragwort

Brachyglottis repanda

Hedge Barberry

Berberis stenophylla

Crown Daisy

Glebionis coronaria

Akiraho

Olearia paniculata

Rockery Willowherb

Epilobium pedunculare

sorrel

Oxalis rosea

Crispate Smoothcap Moss

Atrichum crispum

Mrs Wilson's Barberry

Berberis wilsoniae

Pott's Montbretia

Crocosmia pottsii

New Zealand Broadleaf

Griselinia littoralis

Lesser Mexican-stonecrop

Sedum confusum

Cape Figwort

Phygelius capensis

Harpoon weed

Asparagopsis armata

Hairy Pennywort

Hydrocotyle moschata

Greek Squill

Scilla messeniaca

Dorset heath

Erica ciliaris

Aunt Eliza

Crocosmia paniculata

Stanford Screw-moss

Hennediella stanfordensis

Narihira Bamboo

Semiarundinaria fastuosa

Corsican Heath

Erica terminalis

Great Crestwort

Lophocolea bispinosa

Sicilian Chamomile

Anthemis punctata

American Gooseberry Mildew

Podosphaera mors-uvae

Dutch elm disease

Ophiostoma novo-ulmi

Dutch Elm Disease

Ophiostoma ulmi

Potato Wart Disease

Synchytrium endobioticum

Alder rust

Melampsoridium hiratsukanum

Sphaeropsis blight

Sphaeropsis sapinea

Daisy Rust

Puccinia distincta

Entoleuca mammata

Rhabdocline pseudotsugae

Puccinia lagenophorae

Macrophomina phaseolina

Ramularia collo-cygni

japweed

Sargassum muticum

Sudden oak death

Phytophthora ramorum

Brown algae

Colpomenia peregrina

Asian kelp

Undaria pinnatifida

Diatom

Coscinodiscus wailesii

Wasting Disease

Labyrinthula zosterae

Centric diatom

Skeletonema subsalsum

Aphanomyces astaci

Phytophthora syringae

Heterosigma akashiwo

Alexandrium tamarense

Karenia mikimotoi

Isochrysis galbana

Erwinia amylovora

sika deer

Cervus nippon