Conyza sumatrensis: Wikis

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Categories: Flora of Zimbabwe > Medicinal plants > Astereae > Flora naturalised in Australia > Invasive plant species

Encyclopedia

Updated live from Wikipedia, last check: June 01, 2012 04:51 UTC (54 seconds ago)

From Wikipedia, the free encyclopedia

Conyza sumatrensis

Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Tribe:	Astereae
Genus:	Conyza
Species:	*C. sumatrensis*
Binomial name
*Conyza sumatrensis*

Conyza sumatrensis is an annual herb native to North America ^[1] but naturalised worldwide.

In certain countries the plant has started to exhibit resistance to herbicides.^[2]

In Britain, of the alien British Conyza species, this is the second most abundant (after C. canadensis) and is typically found in London and the South East of England.

Plant Details

Type	Details	Comments
Scientific Name	Conyza sumatrensis	Synonyms: Conyza albida, Conyza altissima, Conyza nandina
Common Names	fleabane, tall fleabane, broad-leaved fleabane, white horseweed, Sumatran fleabane, Guernsey fleabane
Family	Asteraceae
Seasonality	Annual
Height	1-2 metres when fully grown (summer/autumn)
Description	Flowers are white rather than purple-pink. Its leaves are like dandelion leaves, but longer, thinner and more like primrose leaves in colour and texture. Its seeding heads are like dandelions, but straw couloured and smaller. ^[3])
Toxicity	(References needed)
Threat to other plants	It poses a significant threat to wildlife conservation areas and other reserves. Its invasive nature and competitive ability could suppress the native flora in the more open habitats it favours.
Origin	North America
Naturalised	South America	Europe	Asia	Australasia

References

^ http://www.rbgsyd.nsw.gov.au/science/hot_science_topics/Ecology_of_Cumberland_Plain_Woodland/woodland_plants/conyza_albida
^ resistance to herbicides
^ see

External links

Wikispecies

Up to date as of January 23, 2010

From Wikispecies

Taxonavigation

Classification System: APG II (down to family level)

Main Page
Cladus: Eukaryota
Regnum: Plantae
Cladus: Angiospermae
Cladus: Eudicots
Cladus: core eudicots
Cladus: Asterids
Cladus: Euasterids II
Ordo: Asterales
Familia: Asteraceae
Subfamilia: Asteroideae
Tribus: Astereae
Genus: Conyza
Species: Conyza sumatrensis

Name

Conyza sumatrensis (Retz.) E.Walker

References

Journal of Japanese Botany. [Shokubutsu Kenkyu Zasshi]. Tokyo 46:72. 1971
USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Data from 07-Oct-06]. [1]