Parthenium hysterophorus

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Noun1.Parthenium hysterophorus - tropical American annual weed with small radiate heads of white flowers; adventive in southern United States
genus Parthenium, Parthenium - small genus of North American herbs and shrubs with terminal panicles of small ray flowers
weed - any plant that crowds out cultivated plants
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References in periodicals archive ?
elev., 09.iv.2016 Parthenium hysterophorus (Parthenium weed); 4,Chara Pani (Rawalpindi) (N33Adeg51.013E73Adeg 19.156)3809ft.elev.,11.xi.2016 Parthenium hysterophorus (Parthenium weed), 2, Neela Sand (Rawalpindi) (N33Adeg9.516E73Adeg22.007) 3027ft.elev., 19.
PESHAWAR -- Parthenium hysterophorus, an invasive weed specie commonly known as famine plant which damages crops production, livestock and human health due to its allelopathic (toxin releasing plants) nature, is fast spreading in Khyber Pakhtunkhwa (KP).
The alien plants, the report mentioned, invading local vegetation in Pakistan include Brossentia papyrifera (found in Islamabad Capital territory), Parthenium hysterophorus (found in Punjab and Khyber Pakhtunkhwa provinces), Prosopis juliflora (found all over Pakistan), Eucalyptus camaldulensis (found in Punjab and Sindh provinces), Salvinia (aquatic plant widely distributed in water bodies in Sindh), Cannabis sativa (found in Islamabad Capital Territory), Lantana camara and Xanthium strumarium (found in upper Punjab and Khyber Pakhtunkhwa provinces).
Leaf extract of Lantana in high concentration inhibits the growth of Parthenium hysterophorus in flowering stage (Mishra, 2014).
These last two localities included plain area covered with spiny bush vegetation including Senegalia modesta, Broussonetia papyrifera and Parthenium hysterophorus. Wheat is also cultivated in this region.
Patch test results reveal that nickel sulphate (43.16%) and Parthenium hysterophorus (22.14%) are the commonest culprit allergens (Table 8).
These results are similar to those found for galls induced by Bystracoccus mataybae on leaflets of Matayba guianensis (Oliveira et al., 2017), galls induced by aphids (Larson, 1998), and galls of Epiblema strenuana induced on Parthenium hysterophorus (Florentine et al., 2005).
Dhaliwal, "Chemical transformations of alpha-methylene-gamma-lactones of Parthenium hysterophorus Linn.
De acuerdo a la relacion con otras especies, Amoreuxia wrightii se asocio con especies pioneras que emergen despues de un disturbio, con el dominio de especies de herbaceas y pastos como Gutierrezia sarothrae (Pursh) Britton & Rusby, Gymnosperma glutinosum (Spreng.) Less., Parthenium hysterophorus L., Aristida purpurea Nutt., Panicum obtusum Kunth y Cynodon dactylon (L.) Pers.; asi como arbustos de porte bajo como Acacia amentacea, Acacia berlandieri Benth.