NationMaster - Encyclopedia: Cirsium

Cirsium is a genus of perennial flowering plants in the Asteraceae, one of several genera known popularly as thistles. Red Valerian, a perennial plant. ... Diversity About 1500 genera and 23,000 species Type Genus Aster L. Subfamilies Barnadesioideae Cichorioideae Tribe Arctotidae Tribe Cardueae Tribe Eremothamneae Tribe Lactuceae Tribe Liabeae Tribe Mutisieae Tribe Tarchonantheae Tribe Vernonieae Asteroideae Tribe Anthemideae Tribe Astereae Tribe Calenduleae Tribe Eupatorieae Tribe Gnaphalieae Tribe Helenieae Tribe Heliantheae Tribe Inuleae Tribe Plucheae... Milk thistle flowerhead Thistledown a method of seed dispersal by wind. ...

They are known for their effusive flowered heads (usually purple, rose, yellow, or white). The radially symmetrical disk flowers are situated at the end of the branches. They have erect, prickly stems and leaves, with a characteristic focal point at the base of the flower which is particularly spiny. The leaves are alternate and can be slightly hairy; Their stem wings can be lacking (Cirsium arvensis), conspicuous (Cirsium vulgare), or inconspicuous. They can spread by seed and rhizome (Cirsium arvensis) or by seed alone. Their seed has tiny tufts of hair, which can carry them far by wind. A Phalaenopsis flower Rudbeckia fulgida A flower, (<Old French flo(u)r<Latin florem<flos), also known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Magnoliophyta, also called angiosperms). ... Stem showing internode and nodes plus leaf petiole and new stem rising from node. ... A ripe red jalapeÃ±o cut open to show the seeds For other uses, see Seed (disambiguation). ... Ginger rhizome A rhizome is, in botany, a usually underground, horizontal stem of a plant that often sends out roots and shoots from its nodes. ...

Cirsium thistles are used as food plants by the larvae of some Lepidoptera species - see list of Lepidoptera which feed on Cirsium. A larval insect A larva (Latin; plural larvae) is a juvenile form of animal with indirect development, undergoing metamorphosis (for example, insects or amphibians). ... Superfamilies Butterflies Hesperioidea Papilionoidea Moths Acanthopteroctetoidea Alucitoidea Axioidea Bombycoidea Calliduloidea Choreutoidea Cossoidea Drepanoidea Epermenioidea Eriocranioidea Galacticoidea Gelechioidea Geometroidea Gracillarioidea Hedyloidea Hepialoidea Heterobathmioidea Hyblaeoidea Immoidea Incurvarioidea Lasiocampoidea Lophocoronoidea Micropterigoidea Mimallonoidea Mnesarchaeoidea Neopseustoidea Nepticuloidea Noctuoidea Palaephatoidea Pterophoroidea Pyraloidea Schreckensteinioidea Sesioidea Simaethistoidea Thyridoidea Tineoidea Tischerioidea Tortricoidea Urodoidea Whalleyanoidea Yponomeutoidea Zygaenoidea The order Lepidoptera... Cirsium species are used as food plants by the larvae of some Lepidoptera species including: Coleophora case-bearers: (recorded on ) Dot Moth Melanchra persicariae (recorded on ) The Engrailed Ectropis crepuscularia (recorded on ) Grey Pug Eupithecia subfuscata (recorded on ) Hummingbird Hawk-moth Macroglossum stellatarum Lesser Yellow Underwing Noctua comes Lime-speck...

Most species are considered weeds, but some are cultivated in gardens for their aesthetic value, and blessed thistle is believed to be a galactagogue. Some common species: Cirsium lanceolatum, Cirsium palustre, Cirsium oleraceum. This article does not cite any references or sources. ... A galactagogue is a substance, typically a herb, that increases lactation. ... Cirsium lanceolatum Categories: Stub ... Cirsium palustre Categories: Stub ... Cirsium oleraceum Categories: Plant stubs | Asteraceae ...

The word 'Cirsium' derives from the Greek word kirsos, meaning 'swollen vein'. Thistles were used as a remedy against swollen veins.

Species

Category: Asteraceae Image File history File links Metadata Size of this preview: 800 Ã— 600 pixelsFull resolution (2592 Ã— 1944 pixel, file size: 965 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Metadata Size of this preview: 800 Ã— 600 pixelsFull resolution (2592 Ã— 1944 pixel, file size: 965 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Binomial name Cirsium arvense (L.) Scop. ... Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... Binomial name Nutt. ... Binomial name (L.) Scop. ... Binomial name Cirsium fontinale E. Green Cirsium fontinale or Fountain thistle is an flowering perennial herb of the Asteraceae family, endemic to a limited region within northern and central California at an elevation not exceeding 750 meters. ... Download high resolution version (1281x892, 414 KB)Bumblebee on a thistle near Lancaster University, UK. Note: this is not a honeybee. ... Download high resolution version (1281x892, 414 KB)Bumblebee on a thistle near Lancaster University, UK. Note: this is not a honeybee. ... Cirsium oleraceum Categories: Plant stubs | Asteraceae ... Binomial name (L.) Scop. ... Cirsium palustre Categories: Stub ... Binomial name (Gray) Jeps. ... Binomial name (Savi) Ten. ... In scientific classification, synonymy is the existence of multiple systematic names to label the same organism. ... Image File history File links Commons-logo. ... The Wikimedia Commons (also called Wikicommons) is a repository of free content images, sound and other multimedia files. ...

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Species