Parthenium hysterophorus is an annual herb that aggressively colonizes disturbed sitesIt is considered as one of the ‘100 most invasive species in the world’ by the IUCN (GISD, 2018). Native to the New World, it has been accidentally introduced into several countries and has become a serious agricultural and rangeland weed in parts of Australia, Asia, Africa and the Pacific Islands. It is reported as a major weed in field crops in more than 45 countries (Bajwa et al., 2016Shabbir et al., 2019), with yield losses estimated in millions of dollars in Australia (Kaur et al., 2014).    --- CABI


  1. Partheniumhysterophorusis an annual herb that aggressively colonizes disturbed sites.It is considered as one of the ‘100 most invasive species in the world’ by the IUCN (GISD, 2018). Native to the New World, it has been accidentally introduced into several countries and has become a serious...
  2. Abstract, International Journal of Current Microbiology and Applied Sciences, 2018 Parthenium hysterophorus perennial North American weed and known for its harmful effects. It also has the other name like carrot weed, congress grass and one of the ten feared noxious weed species in the world. It...
  3. 2013-01-20 Invasive Alien Species (IAS) pose one of the most significant threats to biodiversity, agriculture, sustainable economic development and human and animal health on this planet. As a result of increased global trade and travel, invasive species have established themselves on every continent – not...
  4. Abstract, African Journal of Plant Science, 2019 Article In Press Abstract Experiment was carried out to study the suppressive effect of some grasses on the growth and development of parthenium (Parthenium hysterophorus L.). The experiment was consisted of three grasses (Cenchrus ciliaris L.,...
  5. 2016-09-08 Material is presented in English and Kiswahili Parthenium hysterophorus is a noxious weed invading East Africa. It reduces crop growth and can harm the health of both humans and animals. ECHO is raising awareness of it through an educational video, presentations, and community involvement.
  6. 2017-02-15 Except: Parthenium hysterophorus, also known as carrot top, white top weed, and fever few is a fairly new invasive weed but has quickly become one of the worst weeds to tropical areas(CABI 2015). In Ethiopia it is known as Farmasissa which means “sign your land away” (IAPPS 2016). Originally from...
  7. 2017-02-09 Parthenium hysterophorus, also known as carrot top, white top weed, and fever few is a fairly new invasive weed but has quickly become one of the worst weeds to tropical areas(CABI 2015). In Ethiopia it is known as Farmasissa which means “sign your land away” (IAPPS 2016). Originally from Central...
  8. Ragweed parthenium (a.k.a. parthenium weed, Santa Maria feverfew, congress grass, carrot weed, white top, etc.), a member of the Asteraceae (Compositae) family, is native to Mexico and Central and South America and is becoming an increasingly troublesome weed around the world (Figure 1)....
  9. Common names:Whitetop, Whitehead, Barley flower, Congress Grass, Amargosa, Escoba Amarga An erect annual herb with alternate, deeply-dissected leaves, growing up to 2 m tall with much branched inflorescences bearing white flower heads and numerous obovoid, smooth and black achenes. Parthenium is...
  10. Ragweed parthenium (a.k.a. parthenium weed, Santa Maria feverfew, congress grass, carrot weed, white top, etc.), a member of the Asteraceae (Compositae) family, is native to Mexico and Central and South America and is becoming an increasingly troublesome weed around the world (Figure 1)....
  11. 2017-11-16 Invasive alien plants pose a major threat to agriculture, the natural environment and livelihoods worldwide and create challenges for development. This is especially the case for those who live and work in rural areas. This book, for the first time, brings together a wide range of invasive plant...
  12. 2016-11-01 ECHO has become aware of an invasive weed in many areas in Africa. Parthenium hysterophorus, a noxious weed, has spread from its native region in Mexico and South America to more than twenty countries globally, arriving in Ethiopia in the 1980s in contaminated famine-relief food supplies. Since...