Invasives

Page 3 of 7, Total records 695

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Species Description Photo
Dalbergia sissoo (Indian Rosewood) Dalbergia sissoo is a perennial tree that is economically important for its value in forestry, agroforestry, and horticulture. It provides timber, fuelwood, fodder, has medicinal value, used ex ...
Daphnia lumholtzi Daphnia lumholtzi is a cladoceran commonly referred to as a water flea. It is type of zooplankton that serves as an important food source for larval and juvenile fish. It is invading reservoirs and la ...
Delairea odorata (Cape-ivy) Delairea odorata is a perennial, evergreen vine that is native to South Africa but has been introduced into California where it is highly invasive and has started to dominate habitats and displace nat ...
Dendroctonus valens (red turpentine beetle) Timber imports into China in the 1980s probably translocated the North American pest Dendroctonus valens (red turpentine beetle) into the country. It has since established itself vast tracts of ...
Dendrodrilus rubidus Dendrodrilus rubidus is a small, litter dwelling earthworm native to Europe that has invaded areas of Australia, South America, Canada, Russian Federation United States and a large number of sub-Antar ...
Dendrolimus superans The Siberian moth, Dendrolimus sibiricus is a severe pest in regions it inhabits due to its role as a defoliator of conifer trees stands. It is native to Russia and China but has spread outward to oth ...
Diaphorina citri (Asian citrus psyllid) Diaphorina citri or Asian citrus psyllid is one of the most serious pests of citrus in the world. It causes damage through direct feeding and its toxic saliva, leading to leaf distortion and cu ...
Dichrostachys cinerea (aroma) Dichrostachys cinerea is a thorny, fast-growing woody bush or treelet which invades fields, wasteland, road sides and other disturbed areas. Originaly from from Africa, it has been introduced to the W ...
Dioscorea bulbifera (air yam) Dioscorea bulbifera is a highly invasive plant and presents a management problem in many parts of the world. Despite some medicinal and agricultural uses, D. bulbifera is widely charact ...
Dioscorea oppositifolia (Chinese yam) Dioscorea oppositifolia is a fast growing twining vine that has escaped from cultivation. It can survive in a number of different habitats and environmental conditions, but is most commonly found at ...
Dipogon lignosus (okie bean) Dipogon lignosus is a climbing vine that has become invasive in the Australian-Pacific region. It vigorously seeds and its growth is relentless. In a short time period this species can smother indigen ...
Discula destructiva Discula destructiva is a fungus that has caused serious losses to North American native flowering dogwood (Cornus florida) and other native and introduced species (C. nuttallii and C. kousa, respectiv ...
Dreissena bugensis (quagga mussel) Dreissena bugensis is native to parts of Ukraine. This small freshwater mussel is an active filter feeder, which competes for food resources with filter-feeding zooplankton by accelerating sediment ...
Dreissena polymorpha (zebra mussel) Dysdera crocata has been introduced and may be established in parts of St Helena, however, its biostatus is not known for certain and as it is has not been monitored. D. crocata is a kno ...
Dysdera crocata (woodlouse spider) ...
Egeria densa (Brazilian waterweed) Egeria densa is a submersed, freshwater perennial herb that forms dense monospecific stands that restrict water movement, trap sediment, and cause fluctuations in water quality. It has also affected t ...
Eichhornia crassipes (common water hyacinth) Originally from South America, Eichhornia crassipes is one of the worst aquatic weeds in the world. Its beautiful, large purple and violet flowers make it a popular ornamental plant for ponds. It is n ...
Elaeagnus angustifolia (Russian olive) Native to southern Europe and western Asia, Elaeagnus angustifolia is commonly found growing along floodplains, riverbanks, stream courses, marshes, and irrigation ditches Seedlings are toleran ...
Elaeagnus pungens (thorny elaeagnus) Originally from eastern Asia, Elaeagnus pungens has found its way to the United States, New Zealand and Europe. It is a plant that may out-compete other plants for sunlight because of its outwa ...
Elaeagnus umbellata (oleaster) Elaeagnus umbellata is valued as an ornamental because of its silvery foliage and flowers and its hardiness under dry conditions. It invades grasslands and disturbed areas adjacent to the plant ...
Elaeis guineensis (African oil palm) Elaeis guineensis is native to the west African coast from Liberia to Angola. It has been introduced to many islands in the Pacific and to South America at the time of slavery. It is widely cultivated ...
Elephantopus mollis (soft elephantsfoot) Elephantopus mollis is a fast growing herbaceous plant that can reach over a metre in height. In the tropics and sub-tropics it is considered a very problematic weed for agriculture and animal husband ...
Elettaria cardamomum (cardamom) Elettaria cardamomum is a herbaceous rhizome from India valued as an aromatic. The species is naturalised in La aRéunion where it is spreading in natural or semi-natural ecosystems with a relatively h ...
Eleutherodactylus coqui (Coquí) Eleutherodactylus coqui is a relatively small tree frog native to Puerto Rico. The frogs are quite adaptable to different ecological zones and elevations. Their loud call is the main reason th ...
Eleutherodactylus johnstonei (Johnstone's whistling frog) Eleutherodactylus planirostris, the greenhouse frog, is a small anuran native to the Caribbean, which has invaded non-native Caribbean locations, the United States, and Mexico. Human-mediated dispersa ...
Eleutherodactylus planirostris (Greenhouse Frog) Eleutherodactylus planirostris, the greenhouse frog, is a small anuran native to the Caribbean which has invaded non-native Caribbean locations, the United States, and Mexico. Most commonly spr ...
Elminius modestus Elminius modestus has spread successfully throughout the Western Europe coastal areas, since its introduction to the southeast coast of the Uk most probably on the hull of ships from New Zealan ...
Elodea canadensis (Canadian waterweed) Elodea canadensis a submergent, aquatic plant, native to North America, has spread rapidly and easily throughout the world. Particularly in Europe, this species is very invasive and is conside ...
Epipremnum pinnatum (centipede tongavine) Pothos vine (Epipremnum pinnatum) is a common escaped garden vine. It climbs up tree trunks and into the forest canopy, primarily in disturbed areas and along roadsides, smothering native plants. The ...
Equus asinus (ass) Equus asinus (donkeys) resemble horses and are characterised by their large head, long ears and cow-like tail. They can be found in tropical savannas and arid hill country in Australia and other arid ...
Equus caballus (horse) Equus caballus is a large non-ruminant herbivorous mammal that is not dissimlar in appearance to the domestic horse. E. caballus has an average lifespan of 25 - 30 years, with 20 years o ...
Erigeron floribundus (asthmaweed) Conyza floribunda is listed as an agricultural and naturalized weed. ...
Erigeron karvinskianus (Latin American fleabane) Erigeron karvinskianus is a widely grown herbaceous ornamental. It is very vigorous and can be spread by rhizomes and become invasive. It is one of the major invasive plants in Hawaii and La Réunion, ...
Erinaceus europaeus (western European hedgehog) Erinaceus europaeus (hedgehogs) threaten native invertebrates, reptiles, amphibians and ground-nesting bird nests through predation. In areas where hedgehogs have been introduced, they also compete wi ...
Eriobotrya japonica (loquat) Eriobotrya japonica has been introduced to warm regions as a fruit or ornamental tree. In various Pacific islands and La Réunion, it can be invasive in natural environments. ...
Eriocheir sinensis (Chinese mitten crab) Eriocheir sinensis (the Chinese mitten crab) is a migrating crab which has invaded Europe and North America from its native region of Asia. During its mass migrations it contributes to the temporar ...
Erodium cicutarium (redstem) Erodium cicutarium is an annual, winter annual or biennial that is a pioneer on disturbed and arid sites. It can cause yield reductions of crops and the seed is very difficult to clean out of small se ...
Erythrocebus patas (patas monkey) Erythrocebus patas is a medium sized terrestrial monkey, native to sub-saharan Africa. Wild populations only rarely come into contact with humans. Their shy behaviour, low densities, cryptic pelage, a ...
Esox lucius (Jack) The northern pike, Esox lucius, is a predatory freshwater fish that is an opportunistic feeder. It is common in lakes, basins and rivers in the United States, Canada, central Asia, Siberia and ...
Estrilda astrild (Common Waxbill) The common waxbill, Estrilda astrild is native to tropical and southern Africa, but has been introduced to many island nations where it has shown mixed success in establishment. It feeds mainl ...
Euonymus alatus subsp. alatus (burning bush) Euonymus alata is a deciduous shrub native to Asia that has been introduced to the United States from New England to the Gulf Coast. Euonymus alata becomes a nuisance because of the ease with which it ...
Euonymus fortunei (Gaiety) Euonymus fortunei is a shrub-like vine native to Asia. Euonymus fortunei can outcompete native vegetation by depleting soil moisture and nutrients, blocking sunlight and by forming a dense vegetative ...
Eupatorium cannabinum (Hemp-agrimony) Eupatorium cannabinum is a woody perennial herb that prefers to inhabit and invade moist habitats such as swamps, marshes and stream banks. It forms dense monotypic stands that compete with and eventu ...
Eupatorium inulifolium Austroeupatorium inulifolium is an aggressive species that rapidly colonizes areas cleared for planting new crops, agricultural fields, fallow fields, waste lands and roadsides. ...
Euphorbia esula (leafy spurge) Native to Europe and temperate Asia, Euphorbia esula (leafy spurge) is found throughout the world, with the exception of Australia. This aggressive invader is one of the first plants to emerge ...
Euryops multifidus (sweet resin bush) Euryops multifidus commonly known as sweet resin bush, is a medium-sized shrub. When the shrub blooms in late winter to early spring, hundreds of small, yellow, daisy-like inflorescences nearly hide t ...
Falcataria moluccana (peacocksplume) Falcataria moluccana is a fast-growing tree, which can reach 40 metres in height. It has been widely planted in the tropics. F. moluccana is able to colonise indigenous forest ecosystems, and is regar ...
Felis catus (Domestic Cat) Felis catus was domesticated in the eastern Mediterranean c. 3000 years ago. Considering the extent to which cats are valued as pets, it is not surprising that they have since been translocated by hum ...
Ficopomatus enigmaticus (trompetkalkkokerworm) Ficopomatus enigmaticus is a reef building tubeworm, believed to be native to Australia and regions of the Indian Ocean. It has established populations worldwide and is an aggressive species that domi ...
Ficus rubiginosa (Port Jackson fig) Ficus rubiginosa is potentially a broad, spreading, evergreen tree that is native to eastern Australia. It usually establishes as a hemiepiphyte or lithophyte, developing into a large strangler or roc ...
Flacourtia indica (governor's plum) Flacourtia indica is a small tree or shrub native to Africa and Asia. It invades disturbed areas, forest edges or clearings. It can form dense stands limiting the regeneration of native species. Its s ...
Flemingia strobilifera (Luck Plant) Flemingia strobilifera is a shrub of the family Fabaceae which grows up to 2 meters high. Grown as an ornamental, the species can become invasive mainly in disturbed areas. It is capable of forming de ...
Fragaria vesca (Wild Strawberry) Fragaria vesca is a herbaceous rhizomatous perennial. It is found in disturbed areas, degraded forests and along roads and paths. In Hawaii, the species is naturalized in mesic areas and moist forests ...
Frangula alnus subsp. alnus (Glossy Buckthorn) Frangula alnus, commonly known as glossy buckthorn, is a shrub that can grow to seven metres and is sometimes considered a tree. Frangula alnus typically inhabits wet, shaded and acidic soils. It can ...
Fuchsia boliviana (Bolivian fuchsia) Fuchsia boliviana is a small tree that develops rapidly. In tropical regions where it has been introduced (such as La Réunion or Hawaii), this plant tends to dominate native plant species. The dense f ...
Fuchsia magellanica (hardy fuchsia) Fuchsia magellanica is a shrub with many horticultural varieties. In tropical regions where it has been introduced (such as La Réunion and Hawaii), this rapidly developing plant tends to dominate nati ...
Funtumia elastica (silkrubber) Originally from South America, Furcraea foetida was introduced as an ornamental and for its fiber. Naturalised on several islands, its inflorescences produce bulblets in large quantities that disperse ...
Furcraea foetida (Mauritius hemp) ...
Gallus gallus (Red Junglefowl) Gallus spp. include the many forms of domesticated chicken which have been bred and distributed widely across the world as an important food source. In addition to potentially spreading disease ...
Gallus varius (Green Junglefowl) Gallus spp. include the many forms of domesticated chicken which have been bred and distributed widely across the world as an important food source. In addition to potentially spreading disease ...
Gambusia affinis (Live-bearing tooth-carp) Gambusia affinis is a small fish native to the fresh waters of the eastern and southern United States. It has become a pest in many waterways around the world following initial introductions early las ...
Gambusia holbrooki (Bore-drain fish) Eastern mosquito fish, Gambusia holbrooki is a small, aggressive live-bearing fish that originates from the southern United States. It has been introduced worldwide as a mosquito-control agent. G. hol ...
Gastrophryne carolinensis (Eastern Narrow-mouthed Toad) The eastern narrowmouth toad (Gastrophryne carolinensis) is native to the United States, from southern Maryland to southeastern Kansas, south to Florida Keys and eastern Texas. It has been introduced ...
Gemma gemma (amethyst gemclam) Gemma gemma, commonly known as the gem clam or amethyst gem clam, is a small benthic organism found in marine, brackish and freshwater environments along the Atlantic coast. The gem clam has been in ...
Geukensia demissa (ribbed mussel) Geukensia demissa (ribbed mussel) is native to the east coast of North America and have been introduced to California, Mexico, Texas and Venezuela. Geukensia demissa are reported to cause problems for ...
Glyceria maxima (reed mannagrass) Glyceria maxima is a native to Europe and temperate Asia and has been intentionally introduced as livestock forage in seasonally inundated pastures, to temperate North America, New Zealand and Austral ...
Gonipterus scutellatus (Eucalyptus weevil) ...
Grevillea robusta (silkoak) Grevillea robusta is a tree that can reach 12 metres in height. It adapts to different ecological conditions and is found between 500 and 2000m altitude where annual rainfall ranges from 800 to 1500mm ...
Gunnera tinctoria (Chilean gunnera) Gunnera tinctoria is a large herbaceous plant that forms dense colonies that shade out and suppress native vegetation. This species is a vigorous seeder, and birds facilitate its spread. Its ability t ...
Gymnocephalus cernua (Ruffe) Gymnocephalus cernuus is introduced into new locations in the ballast water of ships. Introductions also occur through escaped or discarded live bait. It has become a threat to the Great Lakes in No ...
Gymnophthalmus underwoodi (Underwood's spectacled tegu) Gymnorhina tibicen (the Australian magpie) was originally introduced to New Zealand around the 1860s in an attempt to combat pastoral pests. It is known to be extremely territorial, especially during ...
Gymnorhina tibicen (Australian Magpie) ...
Haematoxylum campechianum (Logwood) Haematoxylum campechianum is a 3 to 10m high shrub which can reach up to 15m. A native of Central America, this shrub is now naturalised and invasive in many tropical countries, including West Africa ...
Halophila stipulacea Halophila stipulacea is a seagrass which has been introduced to the Mediterranean and more recently the Caribbean most likely through fragments transported by commercial and recreational shippi ...
Harmonia axyridis (Harlequin Ladybird) Harmonia axyridis (lady beetle) is native to Asia and has been used extensively around the world for biological control of various aphid species. While it is a popular control agent, it has also broug ...
Hedychium coccineum (Red ginger) Originally from eastern parts of the Himalayas, Hedychium coccineum is an herbaceous perennial rhizome that can reach one to two metres in height and be very invasive. On the island of La Réunion, it ...
Hedychium coronarium (white garland-lily) Hedychium coronarium is an herbaceous perennial that reaches up to 2m in height. It resembles Hedychium hedychium and Hedychium flavescens. Originally from India, it has been introduced to many countr ...
Hedychium gardnerianum (Kahila garland-lily) Hedychium gardnerianum is a showy ornamental which grows over a metre tall in wet climates and grows from sea level to an altitude of 1700 metres. It displaces native plants, forms vast, dense colonie ...
Heliotropium angiospermum (scorpionstail) Heliotropium curassavicum occurs in dense monospecific stands and colonizes disturbed habitats. A stand comprises of two levels of populations: one of individuals that have developed from seed ...
Heliotropium curassavicum (salt heliotrope) ...
Hemiberlesia pitysophila (pine-needle scale) Hemiberlesia pitysophila (pine-needle scale insect) is a damaging pest of pine tree plantations, especially when introduced in the absence of natural enemies. ...
Hemidactylus frenatus (Chichak, Common House Gecko) The common house gecko is now established in at least 87 locations around the world outside of its natural range in Asia and the Indo-Pacific. Many of these new locations have been small remote island ...
Hemigrapsus sanguineus (Asian shore crab) Hemigrapsus sanguineus is commonly called the Asian shore crab and is native to the Asia-Pacific region. It has a very broad diet and, in its introduced range, has the potential to affect populations ...
Heracleum mantegazzianum (giant hogweed) Heracleum mantegazzianum is native to Asia and has been introduced into Europe and North America. It is characterised by its size and may grow to 4.5 to 6 metres in height. It is most common a ...
Herpestes javanicus (Small Asian Mongoose) Herpestes javanicus (Indian mongoose) is a small, slim-bodied predator native to areas from Iran, through India to Myanmar (Burma) and the Malay Peninsula. It has been introduced to islands such as Ma ...
Heteropogon contortus (tangelhead) Heteropogon contortus is a thick, fast growing perennial grass, whose stems reach 1.2 meters high. A native of South Africa, southern Asia, northern Australia and Oceania, it has become a weed in the ...
Pilosella aurantiaca (Orange Hawkweed) Orange hawkweed, Hieracium aurantiacum is a perennial herb native to Europe. It has distinctive orange flowers which appear over summer until early autumn and produce tiny black seeds. H. au ...
Pilosella officinarum (Mouse-ear Hawkweed) Several of the European hawkweeds Hieracium spp. have been introduced to New Zealand and North America. The mouseear hawkweed Hieracium pilosella invades pastures, road sides and natural areas. It is ...
Hiptage benghalensis (hiptage) Hiptage benghalensis is a native of India, Southeast Asia and the Philippines. The genus name, Hiptage, is derived from the Greek "hiptamai" which means "to fly" and refers to its unique three-winged ...
Holcus lanatus (common velvetgrass) Holcus lanatus is an herbaceous perennial originating from Europe. It is a common weed of crops and pasture. Introduced to many regions of the world, it is invasive in some. In Hawaii, it is naturaliz ...
Homalodisca vitripennis (Glassy-winged sharpshooter) The glassy-winged sharpshooter (GWSS), Homalodisca vitripennis (Germar), is a xylem-feeding leafhopper native to the southeastern United States and regions of northern Mexico. This insect is an ...
Hoplochelus marginalis The beetle, Hoplochelus marginalis, is common in La Réunion since its introduction in 1970. In a few years, it invaded the entire island to 1000 metres above sea level, causing extensive damage to sug ...
Houttuynia cordata (houttuynia) Houttuynia cordata is a perennial plant that has been introduced as an ornamental for gardens. While the plant has apparently not escaped confinement, there is much fear that it will eventually presen ...
Hydrilla verticillata (waterthyme) Hydrilla verticillata is a submerged freshwater aquatic weed that can tolerate salinity up to 7%. It crowds out native plants by shading them and out-competing them for nutrients. The dense masses it ...
Hydrocharis morsus-ranae (common frogbit) Hydrocharis morsus-ranae is a free-floating herbaceous annual aquatic that can reach 20cm in length. It does well in calm open waters, and can be found in marshes, ditches and swamps. H. morsus-ran ...
Hygrophila polysperma (East Indian hygrophila) The herbaceous perennial Hygrophila polysperma, commonly known as the Indian swamp weed, is a freshwater amphibious herb that was most likely introduced through the aquarium trade. It is found in warm ...
Hylastes ater (Black pine bark beetle) Hylastes ater is considered a pest in many regions due to the damage that it causes to trees, specifically pine species. Although this species is native to Europe, it has recently been declare ...
Hypericum perforatum (common St Johnswort) Hypericum perforatum, more commonly known as St. John's wort, is a native flowering perennial plant of Eurasia. It has been widely introduced, mainly by human vectors, to North and South America, part ...
Hyphantria cunea (fall webworm) Biological invasions of insects, plants and fungal pest species often cause substantial disturbance to forest ecosystems as well as severe socio-economic impacts. Posing an agricultural and economic t ...
Hypochaeris radicata (Common Catsear) Hypochaeris radicata is an herbaceous perennial from the Mediterranean region. It has been introduced to the Americas, Japan, Australia and New Zealand. Hypochaeris radicata is found in disturbed area ...
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Invasive Status provided by Global Invasive Species Database Downloaded on 10 May 2011.