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Topic: Cirsium

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	Florida Nature: Cirsium horridulum - Purple Thistle
		Cirsium horridulum - This is a closer view of the same thistle as in the above photo, displaying the fluffy, white seeds ("thistle down") as well as the flowers.
		Cirsium horridulum - Longhorned beetle (Typocerus zebra) on a Purple Thistle (Cirsium horridulum).
		Cirsium horridulum - Palamedes Swallowtail Butterfly (Papilio palamedes) feeding on a Purple Thistle (Cirsium horridulum).
	www.floridanature.org /species.asp?species=Cirsium_horridulum (231 words)

	Cirsium arvense - Wikipedia, the free encyclopedia
		Cirsium arvense, also known as the Creeping Thistle or Canada Thistle, is a very serious invasive species of the genus Cirsium, native throughout Europe, Asia and northern Africa.
		This plant is cited as a noxious weed in several countries; for example Brazil and the United States.
		Cirsium species, are, for the most part, edible; however, the leaves are considered bitter and therefore rendered inedible; the taproot is considered the most nutritious.
	en.wikipedia.org /wiki/Cirsium_arvense (281 words)

	vPlants - Cirsium pitcheri
		In addition to the flower color and singular location of the species, the blue-green cast of the stem and leaves, the soft white hairs covering the plant and the lack of numerous sharp spines are very diagnostic characters.
		Cirsium pitcheri still exists in scattered natural populations throughout the dunes in Indiana (at both the Indiana Dunes National Lakeshore and the Indiana Dunes State Park).
		Etymology: Cirsium comes from both the Greek words kirsion, meaning a kind of thistle, and cirsos, meaning "swollen vein" for which thistles were once thought a remedy.
	www.vplants.org /pr/species/CIPI.htm (954 words)

	Species: Cirsium vulgare
		In bull thistle, this is probably a result of the immobilization of nutrients during the process of litter breakdown [80].
		Cirsium roots have been sold commercially for use as rabbit bait in Australia [106].
		At least 1 of these strains does attack some native Cirsium species [89,125], and reviews by Randall [122], Beck [15] and Wilson and McCaffrey [164] indicate that it is known to attack native and rare thistles.
	www.fs.fed.us /database/feis/plants/forb/cirvul/all.html (10792 words)

	Cirsium genus (Site not responding. Last check: 2007-10-11)
		Response of Canada thistle (Cirsium arvense) and leafy spurge (Euphorbia esula) clones to chlorsulfuron, clopyralid, and glyphosate.
		Rees, N.E. Establishment, dispersal, and influence of Ceutorhynchus litura on Canada thistle (Cirsium arvense) in the Gallatin Valley of Montana.
		Rotheray, G.E. Effect of moisture on the emergence of Urophora cardui (L) (Diptera:Tephritidae) from its gall on Cirsium arvense (L).
	www.cdfa.ca.gov /phpps/ipc/weedinfo/cirsium.htm (3472 words)

	Vascular Plants of Wisconsin: Cirsium vulgare, bull thistle
		Cirsium vulgare is a large, spiny plant of sunny disturbed sites.
		Cirsium vulgare is an alien weedy species that has become established throughout the continental United States.
		Two of the native species are threatened in Wisconsin and one of those, dune thistle (Cirsium pitcheri) is also federally threatened.
	www.uwgb.edu /BIODIVERSITY/herbarium/Vascular_plants/cirvul01.htm (221 words)

	Cirsium hillii Status Assessment
		Cirsium hillii (Canby) Fern., commonly known as Hill's thistle or occasionally called pasture or prairie thistle, is a relatively wide-ranging species principally of the Upper Midwest.
		Cirsium hillii is restricted principally to the northern portion of the state, although extant localities are known only from two counties in the northeast region (Hedge et al.
		Cirsium hillii is not sufficiently rare, vulnerable, or in decline throughout its range to merit consideration for federal listing at this time.
	www.fws.gov /midwest/endangered/plants/c_hillsa.html (4935 words)

	vPlants - Cirsium hillii
		Synonyms: Cnicus hillii Canby; Cirsium pumilum (Nutt.) Spreng.
		Similar Species: Cirsium hillii can be distinguished from other pinkish flowered thistles by its large, yet relatively few flowering heads, stems lacking spiny wings, and the leaves being green beneath.
		- The reproductive biology of Hill's thistle, Cirsium hillii.
	www.vplants.org /pr/species/CIHI.htm (429 words)

	Cirsium vulgare (Asteraceae) - HEAR species info (Site not responding. Last check: 2007-10-11)
		Information on Cirsium vulgare as relevant to Pacific Islands is provided by the Pacific Island Ecosystems at Risk project (PIER).
		Cirsium vulgare (bull thistle) as an invasive species (information from TNC)
		Information about Cirsium vulgare (bull thistle) as an invasive species is provided by The Nature Conservancy.
	www.hear.org /species/cirsium_vulgare (360 words)

	Canada Thistle - Biological Control of Invasive Plants in the Eastern United States
		The genus Cirsium is a large one, with 92 native species in North America, of which 20 occur in the U.S. states that fall wholly or in part east of the 100th meridian (USDA, NRCS, 1999).
		Phylogenetic studies of North American and Eurasian Cirsium species are needed to elucidate relationships among species in the genus and to provide a basis for planning host-specificity tests and interpreting resulting data.
		Cirsium arvense) in the Gallatin Valley of Montana.
	www.invasive.org /eastern/biocontrol/17CanadaThistle.html (5537 words)

	Cirsium - Wikipedia, the free encyclopedia
		Cirsium neomexicanum - Lavender Thistle, New Mexico Thistle
		Cirsium pitcheri - Pitcher's Thistle, Sand Dune Thistle
		Cirsium vinaceum - Sacramento Mountain Thistle, Sacramento Mountains Thistle
	en.wikipedia.org /wiki/Cirsium (338 words)

	Invasive Plants of Wisconsin: Cirsium palustre, swamp thistle (Site not responding. Last check: 2007-10-11)
		Invasive Plants of Wisconsin: Cirsium palustre, swamp thistle
		Cirsium palustre is relatively easy to identify by the presence of spine-edged, leafy wings on the stem and the absence of strong spiny-tips on the phyllaries (bracts at the base of the flower head).
		The heads of Cirsium palustre are also much smaller than those of Cirsium vulgare, the only other Wisconsin thistle species with winged stems.
	www.uwgb.edu /biodiversity/herbarium/invasive_species/cirpal01.htm (65 words)

	Genome Size Variation in Central European Species of Cirsium (Compositae) and their Natural Hybrids -- BURES et al. 94 ...
		Cirsium is a typical example of a genus with a high affinity
		Range of interspecific genome size in Central European Cirsium species: graph of relative nuclear DNA content obtained after flow-cytometric analysis of DAPI stained nuclei, showing the diploid species with the smallest genome (Cirsium heterophyllum), the diploid species with the largest genome (C.
		Keller ERJ, Schubert I, Fuchs J, Meister A. Interspecific crosses of onion with distant Allium species and characterization of the presumed hybrids by means of flow cytometry, karyotype analysis and genomic in situ hybridization.
	aob.oxfordjournals.org /cgi/content/full/94/3/353 (4249 words)

	Nomenclatural Database for Cirsium
		and Carduus americanus (A.Gray)Greene and Cirsium americanum (A.Gray) Daniels in synonomy with Cirsium centaureae.
		Cirsium candidissimum, Davidson and Moxley, not Dammer 1898.
		smallii as a synonym as Cirsium horridulum var.
	www.largocanyon.org /science/cirsium/refinfo/taxa2.htm (5484 words)

	Botany Photo of the Day: Cirsium vulgare
		Cirsium vulgare is native to Europe and Asia, but is now found throughout most of North America (including all of the continental US and Alaska).
		For a biennial species like Cirsium vulgare, two bad years of no seed production (due to biological controls, fire, chemical control, etc.) could theoretically wipe out a local population.
		However, by having buried seeds reside in ant nests that may not germinate for many years, the long-term sustainability of the entire local population of plants is secured.
	www.ubcbotanicalgarden.org /potd/2006/02/cirsium_vulgare.php (619 words)

	Invasive Species: Plants - Canada Thistle (Cirsium arvense)
		Cirsium arvense - Species Abstracts of Highly Disruptive Exotic Plants at Effigy Mounds National Monument
		Cirsium arvense (Canada thistle) - Invasive Plant Atlas of New England (IPANE)
		Cirsium arvense (herb) - ISSG Global Invasive Species Database
	www.invasivespeciesinfo.gov /plants/canthistle.shtml (490 words)

	Cirsium californicum California Thistle.
		Cirsium californicum is great for a bird garden and a butterfly garden.
		Cirsium californicum's foliage color is Gray, and type is StressDeciduous.
		If the numbers are zero, there is a reason.
	www.laspilitas.com /plants/1379.htm (197 words)

	Cirsium megacephalum (Gray) Cockerell - >>Cirsium undulatum var. undulatum
		Cirsium megacephalum (Gray) Cockerell - >>Cirsium undulatum var.
		All plants can be searched by english common listing or botanical taxa, and by plant family.
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	www.mygarden.net.au /name_detail/cime7/24419/1 (843 words)

	IngentaConnect Search Results (Site not responding. Last check: 2007-10-11)
		Contributions to the pharmacognostical and phytobiological study of the leaves of Cirsium erisithales (Jacq.) Scop.
		Field-based evaluation of a novel approach for infecting Canada thistle (Cirsium arvense) with Pseudomonas syringae pv.
		Impacts of applied Sclerotinia sclerotiorum on the dynamics of a Cirsium arvense population
	www.ingentaconnect.com /searching/Search?title=Cirsium (492 words)

	Cirsium vulgare - Bull thistle, pua kala (Asteraceae) - Plants of Hawaii - Thumbnail Images (Site not responding. Last check: 2007-10-11)
		Cirsium vulgare - Bull thistle, pua kala (Asteraceae) - Plants of Hawaii - Thumbnail Images
		Cirsium vulgare - Bull thistle, pua kala (Asteraceae)
		Page created November 01, 2002 by Starr, and last updated January 16, 2007 by Starr.
	www.hear.org /starr/hiplants/images/thumbnails/html/cirsium_vulgare.htm (116 words)

	PLANTS Profile for Cirsium vulgare (bull thistle) \| USDA PLANTS (Site not responding. Last check: 2007-10-11)
		PLANTS Profile for Cirsium vulgare (bull thistle)
		See available county distributions by clicking on the states below or on the map.
		View 476 genera in Asteraceae, 93 species in Cirsium
	plants.usda.gov /java/profile?symbol=CIVU (364 words)

	Cirsium (a genus of thistles) (Site not responding. Last check: 2007-10-11)
		Cirsium may be covered by literature listed under:
		Apion lacertense - a seed weevil (Coleoptera: Apionidae)
		Cirsium may be associated with more taxa listed at higher taxonomic level
	www.bioimages.org.uk /html/T3026.HTM (214 words)

	Information about Canada Thistle - Cirsium arvense
		Fragments of 12.5 mm produce shoots 100 percent of the time.
		arvense hybridizes with nine other species of Cirsium.
		It has been found to hybridize with only C.
	www.nwcb.wa.gov /weed_info/Written_findings/Cirsium_arvense.html (1003 words)

	Cirsium vulgare : bull thistle
		Synonyms: Carduus lanceolatus; Carduus vulgaris; Cirsium lanceolatum; Cirsium lanceolatum var.
		Photo taken at the Landis Arboretum, Esperance, NY by starmoon
		Add your comments and/or image on Cirsium vulgare
	www.hortiplex.com /plants/p1/gw1010032.html (53 words)

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