Conyza

　

WordNet

1. common American weed or wildflower (同)genus Conyza

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/11/29 15:25:04」(JST)

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Conyza
Conyza bonariensis
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Tribe:	Astereae
Genus:	Conyza Less., 1832
Species
See text

Conyza (horseweed, butterweed or fleabane) is a genus of about 50 species of flowering plants in the family Asteraceae, native to tropical and warm temperate regions throughout the world, and also north into cool temperate regions in North America and eastern Asia. The genus is closely related to Erigeron (also known as fleabanes).

The species are annual or perennial herbaceous plants, rarely shrubs, growing to 1-2 m tall. The stems are erect, branched, with alternate leaves. The flowers are produced in inflorescences, with several inflorescences loosely clustered on each stem.

Many plant species of the Conyza genus are ruderal species and some have been found to be resistant to the herbicide Roundup, in some cases.

Conyza bonariensis seed heads and flowers

Selected species

The native range of each species is given; some are introduced elsewhere in the world.

• Conyza aegyptiaca. Africa, southern Asia.
• Conyza ageratoides. Madagascar.
• Conyza blinii. China.
• Conyza bonariensis. Pantropical.
• Conyza canadensis. North and Central America.
• Conyza japonica. Eastern Asia.
• Conyza laevigata. Mexico, Central and South America
• Conyza leucantha. Southern Asia, northern Australia.
• Conyza muliensis. China.
• Conyza perennis. China.
• Conyza stricta. China.
• Conyza primulifolia. Mexico, Central and South America.
• Conyza sumatrensis. North America (despite the Latin name, not Sumatra).
• Conyza ramosissima

References

External links

• Germplasm Resources Information Network: Conyza
• Chinese plant names: Conyza

English Journal

• Bioenergetics growth model for the effect of gamma irradiation and plant extract (Barnoof) on the progeny of Black cutworm, Agrotis ipsilon (Hufnagel).

• Mohamed HF.SourceBiological Applications Department, Nuclear Research Center, Atomic Energy Authority, Cairo, Egypt. husseinmohamed29@yahoo.com
• Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine.Appl Radiat Isot.2013 Mar;73:101-8. doi: 10.1016/j.apradiso.2012.11.013. Epub 2012 Dec 13.
• This study investigated the effects of two substerilizing doses of gamma radiation, 100 and 150 Gray (Gy), and/or the plant extract Conyza dioscorides (Barnoof) in two solvents on certain biological aspects and the energy budget of the Black cutworm, Agrotis ipsilon (Hufnagel). Data revealed that th
• PMID 23313764

• Chemical composition and antimicrobial and allelopathic activity of Tunisian Conyza sumatrensis (Retz.) E.WALKER essential oils.

• Mabrouk S, Salah KB, Elaissi A, Jlaiel L, Jannet HB, Aouni M, Harzallah-Skhiri F.SourceLaboratory of Genetic Biodiversity and Valorisation of Bioresources (LR11ES41), Higher Institute of Biotechnology of Monastir, University of Monastir, Rue Tahar Haddad, 5000 Monastir, Tunisia.
• Chemistry & biodiversity.Chem Biodivers.2013 Feb;10(2):209-23. doi: 10.1002/cbdv.201200117.
• Conyza sumatrensis (Retz.) E.WALKER (Asteraceae) is a spontaneous annual herb, fairly widespread throughout Tunisia, which has rarely been studied or valued in any sector. Essential oils were obtained by hydrodistillation of different parts (flower heads, leaves, stems, and roots) of C. sumatrensis
• PMID 23418168

• Gut modulator effects of Conyza bonariensis explain its traditional use in constipation and diarrhea.

• Bukhari IA, Shah AJ, Khan RA, Meo SA, Khan A, Gilani AH.SourceDepartment of Physiology, Pharmacology division, College of Medicine, King Saud University, Riyadh, Saudi Arabia. iabukhari@ksu.edu.sa  
• European review for medical and pharmacological sciences.Eur Rev Med Pharmacol Sci.2013 Feb;17(4):552-8.
• BACKGROUND AND OBJECTIVES: The current investigation was carried out to explore the pharmacological basis of the crude extract of Conyza bonariensis (Cb.Cr) for its use in constipation and diarrhea.MATERIALS AND METHODS: The plant extract of Conyza bonariensis (C. bonariensis) was prepared, isolated
• PMID 23467958

Japanese Journal

• Effects of the planting substratum on the growth of horseweed (Conyza sumatrensis (Retz.) Walker) in Zoysia japonica Steud. turf

• TANAKA Satoru,MIURA Reiichi,TOMINAGA Tohru
• Grassland science 58(2), 117-119, 2012-06-01
• NAID 10030972030

• Effects of the planting substratum on the growth of horseweed (Conyza sumatrensis (Retz.) Walker) in Zoysia japonica Steud. turf

• Tanaka Satoru,Miura Reiichi,Tominaga Tohru
• Grassland science 58(2), 117-119, 2012-06-00
• NAID 40019366740

• Applying the double knock technique to control Conyza bonariensis

• WERTH JEFF,WALKER STEVE,BOUCHER LUKE,ROBINSON GEOFF
• Weed biology and management 10(1), 1-8, 2010-03-01
• NAID 10029300507

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