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The National Pest Plant Accord (NPPA) is a New Zealand agreement that identifies pest plants that are prohibited from sale and commercial propagation and distribution.
The Accord initially came into effect on 1 October 2001 between regional councils and government departments with biosecurity responsibilities, but in 2006 was revised to include the Nursery and Garden Industry Association as a member of the decision-making body. Under the Accord, regional councils undertake surveillance to ensure the pest plants are not being sold, propagated or distributed.
The Department of Conservation also lists 328 vascular plant species as environmental weeds – species that infest, are controlled on, or are damaging to land under its control.[1]
The National Pest Plant Accord is periodically updated, which was last done in 2012:[2]
| Scientific name | Common name (1) | Common name (2) | Common name (3) |
|---|---|---|---|
| Ailanthus altissima | tree of heaven | ||
| Akebia quinata | akebia | chocolate vine | five-leaved akebia |
| Alternanthera philoxeroides | alligator weed | pigweed | |
| Anredera cordifolia | Madeira vine | mignonette vine | |
| Araujia hortorum | moth plant | cruel plant | white bladder flower |
| Aristea ecklonii | aristea | blue iris | |
| Arundo donax | giant reed | arundo grass | |
| Asparagus aethiopicus | bushy asparagus | emerald feather | Sprengeri fern, Sprenger's asparagus |
| Asparagus asparagoides | smilax | bridal creeper | |
| Asparagus plumosus[3] | asparagus fern | ||
| Asparagus scandens | climbing asparagus | ||
| Berberis darwinii | Darwin's barberry | ||
| Bomarea multiflora | bomarea | climbing alstromeria | |
| Bryonia cretica | white bryony | ||
| Calluna vulgaris (excluding double flowered cultivars) | heather | ling | |
| Cardiospermum grandiflorum | balloon vine | ||
| Cardiospermum halicacabum | small balloon vine | ||
| Carpobrotus edulis | ice plant | ||
| Carex pendula[3] | dropping sedge | Otahuna sedge | |
| Celastrus orbiculatus | climbing spindle berry | Oriental bittersweet | |
| Cenchrus (all species, excluding C. clandestinus and C. americanus) | |||
| Ceratophyllum demersum | hornwort | coontail | |
| Cestrum aurantiacum[3] | orange cestrum | ||
| Cestrum elegans[3] | red cestrum | ||
| Cestrum fasciculatum[3] | red cestrum | early jessamine | |
| Cestrum nocturnum[3] | queen of the night | ||
| Cestrum parqui | green cestrum | ||
| Chrysanthemoides monilifera | boneseed | ||
| Clematis flammula | clematis | fragrant virgin's bower | plume clematis |
| Clematis vitalba | old man's beard | ||
| Clerodendrum trichotomum[3] | clerodendrum | ||
| Cobaea scandens | cathedral bells | ||
| Cortaderia jubata | purple pampas | ||
| Cortaderia selloana | pampas | ||
| Cotoneaster simonsii | Khasia berry | ||
| Cotyledon orbiculata (and cultivars) | pig's ear | ||
| Crassula multicava | pitted crassula | fairy crassula | |
| Cyathea cooperi | Australian tree fern | lacy tree fern | |
| Dipogon lignosus | mile-a-minute | ||
| Drosera capensis | Cape sundew | ||
| Eccremocarpus scaber | Chilean glory creeper | Chilean glory vine | glory vine, Chilean glory flower |
| Egeria densa | egeria | oxygen weed | Brazilian elodea |
| Ehrharta villosa | pyp grass | ||
| Eichhornia crassipes | water hyacinth | ||
| Eomecon chionantha | snow poppy | poppy of the dawn | Chinese bloodroot |
| Equisetum (all species) | horsetail | ||
| Eragrostis curvula | African love grass | ||
| Erigeron karvinskianus | Mexican daisy | ||
| Euonymus japonicus (excluding small-leaved cultivars such as 'Microphylla' and 'Emerald Gem') | Japanese spindle tree | ||
| Fallopia sachalinensis (and hybrids) | giant knotweed | ||
| Ficus rubiginosa | Port Jackson fig | ||
| Fuchsia boliviana | Bolivian fuchsia | ||
| Gunnera tinctoria | Chilean rhubarb | ||
| Gymnocoronis spilanthoides | Senegal tea | temple plant | costata |
| Hedychium flavescens | yellow ginger | ||
| Hedychium gardnerianum | Kahili ginger | ||
| Heracleum mantegazzianum | giant hogweed | cartwheel flower | wild parsnip, wild rhubarb |
| Homalanthus populifolius | Queensland poplar | bleeding heart tree | poplar leaved omalanthus |
| Houttuynia cordata | chameleon plant | ||
| Hydrilla verticillata | hydrilla | ||
| Hydrocleys nymphoides | water poppy | ||
| Hypericum androsaemum | tutsan | sweet amber | |
| Ipomoea indica | blue morning glory | ||
| Iris pseudacorus | yellow flag | yellow flag iris | |
| Jasminum humile | Italian jasmine | ||
| Juglans ailantifolia[3] | Japanese walnut | ||
| Kennedia rubicunda[3] | dusky coral pea | coral pea | running postman |
| Lagarosiphon major | lagarosiphon | oxygen weed | |
| Lamium galeobdolon | aluminium plant | artillery plant | |
| Lantana camara | lantana | ||
| Ligustrum lucidum | tree privet | ||
| Lilium formosanum | Formosa lily | trumpet lily | St. Joseph's lily, Taiwan lily |
| Lonicera japonica | Japanese honeysuckle | ||
| Ludwigia peploides subsp. montevidensis | primrose willow | floating primrose willow | water primrose |
| Lythrum salicaria | purple loosestrife | ||
| Macfadyena unguis-cati | cat's claw creeper | cat's claw vine | cat's claw ivy, yellow trumpet vine |
| Maytenus boaria[3] | Chilean mayten | mayten | maiten |
| Megathyrsus maximus var. pubiglumis | Guinea grass | green panic | buffalo grass |
| Menyanthes trifoliata | bogbean | ||
| Moraea flaccida | Cape tulip | ||
| Myoporum insulare and hybrids | Tasmanian ngaio | boobialla | |
| Myrica faya | fire tree | candle berry myrtle | |
| Myricaria germanica | false tamarisk | ||
| Myriophyllum aquaticum | parrot's feather | thread of life | Brazilian water milfoil |
| Nassella (all species) | nassella | ||
| Nephrolepis cordifolia | tuber ladder fern | tuber sword fern | |
| Nuphar lutea | yellow water lily | spatterdock | cow lily, brandybottle |
| Nymphaea mexicana | Mexican water lily | banana waterlily | |
| Nymphoides geminata | marshwort | entire marshwort | |
| Nymphoides peltata | fringed water lily | ||
| Ochna serrulata | Mickey Mouse plant | ||
| Osmunda regalis | royal fern | ||
| Passiflora apetala[3] | bat-wing passion flower | ||
| Passiflora caerulea | blue passion flower | ||
| Passiflora tarminiana | northern banana passionfruit | ||
| Passiflora tripartita (all subspecies) | banana passionfruit | ||
| Phragmites australis | phragmites | ||
| Pilosella (all species) | hawkweed | ||
| Pinus contorta | lodgepole pine | contorta pine | |
| Pistia stratiotes | water lettuce | ||
| Pithecoctenium crucigerum[3] | monkey's comb | monkey's hairbrush | |
| Pittosporum undulatum | sweet pittosporum | Victorian box | Australian cheesewood |
| Plectranthus ciliatus | plectranthus | blue spur flower | |
| Polygala myrtifolia (excluding cultivar 'Grandiflora') | sweet pea shrub | sweet pea bush | myrtle leaf milkwort |
| Polypodium vulgare[3] | polypody | common polypody | |
| Potamogeton perfoliatus | clasped pondweed | ||
| Prunus serotina | rum cherry | ||
| Pyracantha angustifolia | firethorn | orange firethorn | yellow firethorn |
| Reynoutria japonica (syn. Fallopia japonica) (and hybrids) | Asiatic knotweed | Japanese knotweed | Mexican bamboo |
| Rhamnus alaternus | rhamnus | evergreen buckthorn | |
| Rhododendron ponticum | wild rhododendron | pontic rhododendron | pontian rhododendron |
| Sagittaria montevidensis | arrowhead | sagittaria | Californian arrowhead |
| Sagittaria platyphylla | sagittaria | delta arrowhead | |
| Sagittaria sagittifolia | arrowhead | ||
| Salix cinerea | grey willow | pussy willow | grey sallow |
| Salix × fragilis | crack willow | ||
| Salvinia molesta | salvinia | Kariba weed | |
| Schinus terebinthifolius | Christmas berry | Brazilian pepper tree | |
| Schoenoplectus californicus | Californian bulrush | ||
| Selaginella kraussiana | African club moss | selaginella | |
| Solanum marginatum | white edged nightshade | ||
| Solanum mauritianum | woolly nightshade | tobacco weed | wild tobacco tree |
| Syzygium smithii | monkey apple | ||
| Tradescantia fluminensis | wandering Willie | ||
| Tropaeolum speciosum | Chilean flame creeper | ||
| Tussilago farfara | coltsfoot | ||
| Typha latifolia | great reedmace | cumbungi | common cattail |
| Utricularia arenaria | bladderwort | ||
| Utricularia gibba | bladderwort | humped bladderwort | |
| Utricularia livida | bladderwort | ||
| Utricularia sandersonii | bladderwort | ||
| Vallisneria australis | eelgrass | ||
| Zantedeschia aethiopica 'Green Goddess' | green goddess | ||
| Zizania latifolia[4] | Manchurian wild rice | Manchurian rice grass |
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