Golden crownbeard (Verbesina encelioides, Asteraceae), first record for the Tunisian flora

doi:10.7320/flmedit26.019

Cited by 4 publications

(2 citation statements)

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“…Pearsall locations were infested moderately (4-6 plants/m 2 ) while the Charlotte sites were infested heavy with golden crownbeard populations (>8 plants/m 2 ) 20 . The plant was also reported in Western Arid Chaco of Cordoba, Argentina, a few semi-arid regions in the Center-East of Tunisia, the mid-rift valley of Ethiopia and some parts of Libya 12,21,22,23 . Presently it is distributed in 5 continents of the world namely America (Argentina, Arizona, Hawaii, Mexico), Africa (Algeria, Egypt, Morocco, Tunisia), Asia (India, Saudi Arabia, Yemen), Europe (Belgium, France, Spain) and Oceania (Australia, Victoria) 23 .…”

Section: Morphologymentioning

confidence: 74%

Untitled

2022

IJPSR

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An introduced, non-native, exotic, or alien species are those that grow in areas outside of their natural habitats. They get introduced deliberately or accidentally into new areas by anthropogenic activities or naturally through water, wind, etc. In non-native areas, these species invade rapidly due to the non-availability of natural enemies (prey) in a new habitat. Therefore, these fast-spreading exotic species are called invasive alien species. Verbesina encelioides, an invasive species of the family Asteraceae, is introduced from the United States and started to invade many arid or semi-arid regions. It is commonly known as 'Golden crownbeard'. The weed is used as a source of traditional medicines by the indigenous people. Some researchers investigated its toxic, allelopathic, antimicrobial and nematocidal properties. Its phytochemical analysis has shown the presence of flavonoids, terpenoids, alkaloids, carbohydrates, saponins, phenolic compounds, sterol, etc. The pharmacological studies showed this plant's antibacterial, antitumor, antifungal, antiprotozoal and hypoglycemic potential. Attempts have been made to cover various aspects related to V. encelioides in this review article. INTRODUCTION:Exotic species are also referred to as alien, non-native, non-indigenous, invasive or introduced species and are defined as species that usually occur outside their natural geographic areas 1 . These species start dominating and negatively affecting the native flora. Nowadays, the invasion of these exotic species has threatened the ecological diversity of natural ecosystems in different parts of the world.

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Section: Morphologymentioning

confidence: 74%

Untitled

2022

IJPSR

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“…By combining data from many locations in publicly accessible databases such as the USA-NPN's National Phenology Database, important discoveries could be made about the ecology of this species and how its growth and phenology might differ across the wide variety of environmental conditions and climate regimes where it occurs (Wolkovich etal., 2013). This is especially important as V. encelioides continues to expand its geographic range having recently colonized, for example, a 40-km 2 area in eastern Tunisia (Sayari, Mekki, & Taleb, 2016).…”

Section: Resultsmentioning

confidence: 99%

Using phenology data to improve control of invasive plant species: A case study on Midway Atoll NWR

Taylor

Holthuijzen

Humphrey

et al. 2020

Ecol Sol and Evidence

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1. Restoration of degraded lands often depends on knowledge of invasive plant species’ ecology coupled with well‐timed treatments to control them. Little is known about the reproductive phenology of Verbesina encelioides (golden crownbeard), which is a highly invasive annual forb species at Midway Atoll National Wildlife Refuge (NWR). Efforts to control V. encelioides on Midway Atoll NWR were challenging, especially when targeted plants went to seed before being treated. 2. To obtain this information, we documented the timing of key reproductive life cycle events in cohorts of V. encelioides plants on Midway Atoll NWR for 12 months beginning in August 2016; we visited these plants every 3–7 days and noted which phenophases the plants exhibited. 3. We found that it took an average of 76 days for V. encelioides to transition from leaves to seed drop, although the time required varied across the year (range: 31–175 days). Accordingly, invasive plant control schedules were adjusted to re‐treat infested areas every 30 days. 4. By incorporating phenology information into invasive plant control operations at Midway Atoll NWR, efforts to eradicate V. encelioides will have a higher chance of succeeding. Standardized methods, such as those from the USA National Phenology Network, provided useful tools for optimizing the timing of management practices; moreover, these data may help to better inform management of invasive plant species with regard to restoration efforts at a global scale.

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Verbesina encelioides-induced cytotoxicity and mitochondria-mediated apoptosis in human colon cancer cells through ROS generation

Farshori

2021

Biologia

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Golden crownbeard (Verbesina encelioides, Asteraceae), first record for the Tunisian flora

Cited by 4 publications

References 4 publications

Untitled

Untitled

Using phenology data to improve control of invasive plant species: A case study on Midway Atoll NWR

Verbesina encelioides-induced cytotoxicity and mitochondria-mediated apoptosis in human colon cancer cells through ROS generation

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