scholarly journals Impatiens balsamina (garden balsam).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
The Philippines ◽  
Forest Understory ◽  
Secondary Forests ◽  
Native Plant ◽  
Tropical Africa ◽  
Natural Habitats ◽  
Native Plant Species ◽  
Impatiens Balsamina ◽  
Annual Herb ◽  
The Caribbean

Abstract Impatiens balsamina is an annual herb thought to be native to India and Myanmar. It has been widely introduced outside of its native range as an ornamental to Europe, Asia, the Americas, Oceania and some parts of tropical Africa. It has escaped from cultivation and become naturalized in disturbed sites and semi-natural habitats including secondary forests and forest edges. It spreads by seed and also vegetatively by stem fragments and can form dense stands in forest understory inhibiting germination and the establishment of seedlings, displacing native plant species. It is thought to be invasive to many tropical and subtropical islands in Oceania and the Caribbean as well as Costa Rica, Peru, the Galapagos Islands, the Philippines and parts of India.

scholarly journals Lupinus angustifolius (narrow-leaf lupin).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
Native Species ◽  
Lupinus Angustifolius ◽  
Grain Legume ◽  
Secondary Forests ◽  
Native Plant ◽  
Native Plant Species ◽  
Disturbed Areas ◽  
Mediterranean Regions ◽  
Annual Herb ◽  
Environmental Weed

Abstract Lupinus angustifolius is a fast growing annual herb native to the Mediterranean regions of Europe, Asia and Africa. It has been widely introduced in tropical and subtropical regions of the world for use as green manure, forage and as a grain legume and soil improver. In many places it is an agricultural and environmental weed. It is naturalized primarily along roadsides, in disturbed areas, secondary forests and in ruderal areas near cultivation. L. angustifolius is able to suppress native plant species by altering soil characteristics through its nitrogen fixing activity, allowing the spread of other non-native species. It is listed as invasive in Australia.

scholarly journals Adonidia merrillii (Christmas palm).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
Plant Species ◽  
The Philippines ◽  
Native Plant ◽  
The Bahamas ◽  
Tropical Regions ◽  
Native Plant Species ◽  
Lethal Yellowing Disease ◽  
Palm Species ◽  
Lethal Yellowing ◽  
Yellowing Disease

Abstract Adonidia merrillii is one of the most popular ornamental palms worldwide. Native to the Philippines and Malaysia, it has been extensively introduced, mostly in tropical regions but also as an indoor plant in subtropical and temperate areas. Currently it is listed as invasive in Cuba, the Bahamas and Anguilla. On these islands, this palm species has escaped cultivation and is now competing with native plant species. Because A. merrillii is highly susceptible to lethal yellowing disease, it is considered a threat for the conservation of native palm species in the Bahamas.

scholarly journals Neomarica caerulea (walking iris).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
South Africa ◽  
Central America ◽  
Native Species ◽  
Plant Species Richness ◽  
Perennial Herb ◽  
Native Vegetation ◽  
Native Plant ◽  
Native Plant Species ◽  
The Caribbean ◽  
Light Green

Abstract Neomarica caerulea is a clumping perennial herb often cultivated as an ornamental for its attractive, light green leaves and colourful flowers. It is native to Brazil and also widely cultivated. It has escaped from cultivation and can be found naturalized along roadsides, in abandoned farms and pastures and in disturbed sites in Central America, the Caribbean and South Africa. This species propagates by seed, but also by rhizomes and plantlets. Once established it can form dense colonies that prevent the regeneration of native vegetation and displace native species reducing native plant species richness. Currently it is listed as invasive in Cuba, though its impact is unknown.

scholarly journals Cardamine flexuosa (wavy bittercress).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
South Africa ◽  
The Philippines ◽  
Native Plant ◽  
The Bahamas ◽  
Native Plant Species ◽  
Agricultural Weed ◽  
Cardamine Flexuosa ◽  
America South ◽  
North And South America ◽  
North And South

Abstract Cardamine flexuosa is a fast-growing herb that often behaves as a weed in both disturbed and undisturbed sites. It is native to Europe and found throughout much of Asia, and has naturalized in North and South America, South Africa and Australia. This species flowers vigorously and forms dense understorey root mats that alter successional processes and displace native plant species. C. flexuosa is a common agricultural weed in paddy fields, crop gardens and orchards and a common weed of gardens, greenhouses and lawns. It is listed as invasive in Myanmar, the Philippines, Hawaii, Cook Islands, South Georgia and the Sandwich Islands and the Bahamas.

scholarly journals Impatiens walleriana (busy lizzy).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
Costa Rica ◽  
Plant Species ◽  
Canary Islands ◽  
New Caledonia ◽  
French Polynesia ◽  
Ornamental Plant ◽  
Secondary Forests ◽  
Native Plant ◽  
Native Plant Species ◽  
Impatiens Walleriana

Abstract Impatiens walleriana is one of the world's most widely grown ornamental plant species. It has repeatedly escaped from cultivation and usually can be found naturalized in secondary forests, coastal thickets, forest gullies, riversides, roadsides and damp shady places. When established it often forms dense and large stands in the understory of secondary forests and plantations that successfully outcompete native plant species and alter ecological succession. Currently, it is listed as invasive in China, Australia, Brazil, Argentina, Chile, Colombia, Uruguay, Costa Rica, Cuba, the Galapagos, French Polynesia, New Caledonia, Hawaii and the Canary Islands. Impatiens walleriana remains a source of great interest among gardeners and breeders, and new hybrids and varieties are developed every year, facilitating the introduction and spread of this species into new areas and thus increasing the likelihood that further invasions will take place.

scholarly journals Manilkara zapota (sapodilla).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval ◽  
Andrew Praciak
Keyword(s):  
Trinidad And Tobago ◽  
Central America ◽  
The Philippines ◽  
Native Plant ◽  
Invasive Weed ◽  
Native Plant Species ◽  
Native Flora ◽  
Manilkara Zapota ◽  
The Usa ◽  
Exotic Pest Plant

Abstract M. zapota, commonly known as sapodilla, is an evergreen tree, 5-20 m tall, with a round, dense crown. Its native range encompasses Central America, Mexico and the West Indies, but it is now widely cultivated for its fruit to a greater or lesser extent in tropical and subtropical lowlands worldwide. It is an important fruit tree all over South-East Asia, grown in home gardens, orchards and plantations. The largest producers of sapodilla fruit are India, Thailand, the Philippines and Malaysia, but it is also grown commercially elsewhere in Asia, South and Central America, and Florida in the USA. Escapes from plantations have caused the species to be classed as a moderately invasive weed in the tropics (Binggeli et al., 1998), although in the USA it is of particular concern in southern and central Florida, where it is classed as a Category I invasive displacing the native flora (Florida Exotic Pest Plant Council, 2001). It is also listed as invasive in Trinidad and Tobago (Trinidad and Tobago Biodiversity, 2017). Trees cast dense shade, making it difficult for other plants to survive in the understorey. Seedlings also grow very densely, inhibiting the establishment of native plant species.

Cardamine flexuosa (wavy bittercress).

2021 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
South Africa ◽  
The Philippines ◽  
Native Plant ◽  
The Bahamas ◽  
Native Plant Species ◽  
Agricultural Weed ◽  
Cardamine Flexuosa ◽  
America South ◽  
North And South America ◽  
North And South

Abstract Cardamine flexuosa is a fast-growing herb that often behaves as a weed in both disturbed and undisturbed sites. It is native to Europe and found throughout much of Asia, and has naturalized in North and South America, South Africa and Australia. This species flowers vigorously and forms dense understorey root mats that alter successional processes and displace native plant species. C. flexuosa is a common agricultural weed in paddy fields, crop gardens and orchards and a common weed of gardens, greenhouses and lawns. It is listed as invasive in Myanmar, the Philippines, Hawaii, Cook Islands, South Georgia and the Sandwich Islands and the Bahamas.

scholarly journals Mussaenda philippica (queen of Philippines).

2021 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
Plant Species ◽  
Environmental Concern ◽  
The Philippines ◽  
Native Plant ◽  
Small Tree ◽  
Tropical Regions ◽  
Native Plant Species ◽  
Public Gardens ◽  
Botanical Gardens ◽  
Private And Public

Abstract Mussaenda philippica is a large shrub or small tree that is native to the Philippines and frequently cultivated as an ornamental in tropical regions. It can be found growing in parks, botanical gardens, private and public gardens and along roadsides and highways. Although plants in cultivation usually do not produce fruits, they can spread vegetatively by stem fragments and cuttings. M. philippica is a species of environmental concern because it can grow up to 8 m tall and has a wide spreading crown that may shade out other vegetation including native plant species.

scholarly journals Mussaenda erythrophylla (red flag bush).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
Environmental Concern ◽  
Ornamental Plant ◽  
Secondary Forests ◽  
Native Plant ◽  
Forest Edges ◽  
Native Plant Species ◽  
The World ◽  
Red Flag ◽  
Plant Grown ◽  
Vigorous Plant

Abstract Mussaenda erythrophylla is a popular ornamental plant grown in parks and gardens across tropical and subtropical regions of the world. Their showy and colourful inflorescences (from bright crimson to deep red) make this plant attractive for horticulturalists. It has also escaped from cultivation and can be found naturalized in forest edges, secondary forests, riverbanks, shrubby savannahs, and in thickets along roadsides. Plants in cultivation usually do not produce fruits, but spread vegetatively by layering. M. erythrophylla is a species of environmental concern because it is a vigorous plant that can form dense thickets up to 10 m high that can easily outcompete and displace other vegetation including native plant species.

scholarly journals Hyptis spicigera (black sesame).

2020 ◽  
Author(s):  
Shruti Dube
Keyword(s):  
Invasive Species ◽  
Caribbean Region ◽  
Tropical Africa ◽  
Invasive Weed ◽  
Pasture Grass ◽  
Agricultural Weed ◽  
Annual Herb ◽  
The Caribbean ◽  
Evidence Of Impact ◽  
Savannah Zone

Abstract Hyptis spicigera is an annual herb possibly native to tropical and subtropical America but now widely naturalized in tropical Africa and Asia, and Australia. This species has become a widespread weed in the Guinea Savannah zone. Its seeds contaminate the pasture grass seed. H. spicigera is listed as an agricultural weed in South Asia, Southeast Asia and Africa (e.g. Burkina Faso, Cameroon, Ghana, Guinea, Nigeria). It is considered an invasive weed in rice-growing areas in Madagascar with no further details. H. spicigera has also spread widely as a tropical weed in the Caribbean region, and is listed as an invasive species on the Global Register for Introduced and Invasive Species for Cuba with evidence of impact. H. spicigera is also listed in the 2017 edition of the Global Compendium of Weeds. This species received a high invasive risk score in an assessment of the invasive threat of introduced species in Australia.

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