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Encyclopedia > Onopordum
Onopordum
Onopordum acanthium
Onopordum acanthium - young flowering head
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Subfamily: Lactucoideae
Tribe: Cardueae
Subtribe: Carduinae
Genus: Onopordum
Species

See text Wikipedia does not have an article with this exact name. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Divisions Green algae Land plants (embryophytes) Non-vascular embryophytes Hepatophyta - liverworts Anthocerophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Seedless vascular plants Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants... Classes Magnoliopsida - Dicots Liliopsida - Monocots The flowering plants (also angiosperms or Magnoliophyta) are one of the major groups of modern plants, comprising those that produce seeds in specialized reproductive organs called flowers, where the ovulary or carpel is enclosed. ... Orders see text Dicotyledons or dicots are flowering plants whose seed contains two embryonic leaves or cotyledons. ... Families See text The Asterales are an order of dicotyledonous flowering plants which include the composite family Asteraceae (sunflowers and daisies) and its related families. ... Genera many, see list The aster or sunflower family (Family Asteraceae or, alternatively Family Compositae) is a taxon of dicotyledonous flowering plants. ...

Onopordum is a genus of about 50 species of thistles belonging to the sunflower family (Asteraceae). Species See text Thistles are perennial flowering plants of the genus Cirsium. ... Genera many, see list The aster or sunflower family (Family Asteraceae or, alternatively Family Compositae) is a taxon of dicotyledonous flowering plants. ...


They are native to Europe (mainly the Mediterranean), Northern Africa, the Canary Islands, the Caucasus, Southwest and Central Asia, and Iraq. They have been introduced as an ornamental plant in the temperate regions of North America and Australia, where they have become naturalised in the wild. They grow on disturbed land, roadsides, arable land and pastures World map showing location of Europe A satellite composite image of Europe Europe is geologically and geographically a peninsula, forming the westernmost part of Eurasia. ... The Mediterranean Sea is an intercontinental sea positioned between Europe to the north, Africa to the south and Asia to the east, covering an approximate area of 2. ... Africa is the worlds second-largest continent in both area and population, after Asia. ... Capitals Las Palmas de Gran Canaria Santa Cruz de Tenerife Area  – Total  – % of Spain Ranked 13th  7 447 km²  1,5% Population  – Total (2003)  – % of Spain  – Density Ranked 8th  1 843 755  4,4%  247,58/km² Demonym  – English  – Spanish  Canary Islander  canario/a Statute of Autonomy August 16, 1982... The Caucasus , a region boardering Asia Minor, is located between the Black Sea and the Caspian Sea which includes the Caucasus mountains and surrounding lowlands. ... A satellite composite image of Asia Asia is the central and eastern part of the continent of Eurasia, defined by subtracting the European peninsula from Eurasia. ... World map showing location of North America A satellite composite image of North America North America is the third largest continent in area and fourth in population after Asia and Africa in area and population and Europe in population. ...


In most of these countries, these thistles are considered noxious weeds, especially in Australia where a biological control program has been set up (using the Rosette Crown Weevil, Trichosirocalus briesei). Dandelions, shown here in proliferation, are commonly thought of as weeds. ... Families Nemonychidae Anthribidae Belidae Attelabidae Brentidae Caridae Ithyceridae Curculionidae A weevil is a beetle from the Curculionoidea superfamily. ...


They are biennials or perennials with branched, spinose winged stems, growing as high as 3 m. In the first season they form the leaves and a few flower heads. In the second season they bolt to their final height, blooming extensively, and then die off. A Biennial plant is a plant that takes between twelve and twenty-four months to complete its lifecycle. ... A Red Valerian, a perennial plant. ... In common parlance, a stem is any elongated, usually narrow, extension or supporting structure of an object. ... In botany, a leaf is an above-ground plant organ specialized for photosynthesis. ... Wildflowers A flower is the reproductive organ of those plants classified as angiosperms (flowering plants; Division Magnoliophyta). ...


They form a basal rosette of gray-green felted leaves. These dentate or shallowly lobed leaves are strongly spinose. These leaves are compound and consist of several pinnatifid or deeply cut leaflets, or are almost pinnate.


The terminal flower head is typical for thistles: semi-spherical to ovoid with purple (seldom white or pink) disc florets. There are no ray florets. The receptacle is glabrous with dentate margins. The tube of the corolla is slender, sac-shaped and symmetrical. The anthers have awl-shaped outgrowths on the top. Corolla can refer to: The automobile manufactured by Toyota; see Toyota Corolla A part of a flower; see Petal ... Flower of the spider tree (Crateva religiosa) with its numerous conspicuous stamens The stamen is the male organ of a flower. ...


The leathery phyllaries consist of several overlapping rows with simple, linear-lanceolate spines. These are smooth to slightly pubescent. Raised thorns on the stem of the wait-a-bit climber Thorns on rose stems A spine is a rigid, pointed surface protuberance or needle-like structure on an animal, shell, or plant, presumably serving as a defense against attack by predators. ...


These plant propagates only by seed. The flowers dry up in mid-summer, releasing their seeds. The fruit is a glabrous achene, 4-6 mm long and with 4 to 50 ribs. The pappus consists of many rows of simple, fine to minutely rough hairs, united in a circular base. A SeeD is a term given to mercenaries trained and employed by Balamb Garden in the Final Fantasy VIII video game. ... Fruit stall in Barcelona, Spain. ... An achene is a type of simple dry fruit produced by many species of flowering plants. ...


Species

Onopordum acanthium - habit
Onopordum acanthium - habit
  • Onopordum acanthium L. : Cotton Thistle, Scotch Thistle, Scotch Common-Thistle, Heraldic Thistle, Woolly Thistle
  • Onopordum acanthophorum Gand.
  • Onopordum acaulon L.: Stemless Thistle, Horse Thistle, Stemless Onopordum
  • Onopordum alexandrinum
  • Onopordum anatolicum
  • Onopordum anisacanthum
  • Onopordum arenarium M.Hossain & M.A.A.Al-Sarraf
  • Onopordum armenum Grossh.
    • Onopordum bracteatum var. arachnoideum S.Erik & H.Sümbül
    • Onopordum bracteatum ssp. creticum Franco
  • Onopordum candidum
  • Onopordum caricum Hub.-Mor.
    • Onopordum caulescens ssp. atticum Franco
  • Onopordum cinereum Grossh.
    • Onopordum corymbosum ssp. visegradense Franco
  • Onopordum davisii Rech.f.
  • Onopordum frickii Tamamsch.
  • Onopordum heteracanthum C.A.Mey.
    • Onopordum humile var. turolensis (Sennen) M.B.Crespo & Mateo
Cotton Thistle (Onopordum acanthium) from Thomé Flora von Deutschland, Österreich und der Schweiz 1885
Cotton Thistle (Onopordum acanthium)
from Thomé Flora von Deutschland, Österreich und der Schweiz 1885
  • Onopordum illyricum L. : IllyrianTthistle, Illyrian Cottonthistle
  • Onopordum jordanicolum
  • Onopordum leptolepis DC.
  • Onopordum macrocanthum
  • Onopordum nervosum : Moor's cottonthistle, cotton thistle
  • Onopordum nivescens Gand.
  • Onopordum nogalesii Svent
  • Onopordum prjachinii Tamamsch.
  • Onopordum sarrafii C.C.Townsend
  • Onopordum seravschanicum Tamamsch.
  • Onopordum sibthorpianum
  • Onopordum tauricum Willd. : Turkish Thistle, Taurian Thistle, Taurus Cottonthistle, Bull Cottonthistle
  • Onopordum transiens Gand.
  • Onopordum turcicum Danin

Download high resolution version (480x640, 73 KB) Wikipedia does not have an article with this exact name. ... Download high resolution version (480x640, 73 KB) Wikipedia does not have an article with this exact name. ... Cotton thistle Categories: Plant stubs | Asteraceae ... Download high resolution version (1510x2443, 732 KB) Wikipedia does not have an article with this exact name. ... Download high resolution version (1510x2443, 732 KB) Wikipedia does not have an article with this exact name. ...

Natural hybrids

  • Onopordum × brevicaule (Onopordum acaulon × Onopordum acanthium )
  • Onopordum × erectum (Onopordum nervosum ssp. castellanum x Onopordum tauricum ssp. corymbosum )
  • Onopordum × macronervosum (Onopordum nervosum × Onopordum macrocanthum)
  • Onopordum × onubense (Onopordum dissectum × Onopordum macrocanthum)
  • Onopordum × spinosissimum (Onopordum illyricum × Onopordum acanthium)

Reference

  • Briese, D.T., Lane, D., Hyde-Wyatt, B.H., Crocker, J., Diver, R.G. (1990). Distribution of thistles of the genus Onopordum in Australia. Plant Protection Quarterly 5: 23-27.

  Results from FactBites:
 
Onopordum genus (0 words)
Survival is encouraged by overgrazing in grasslands and by low intensity burning of fields that often stimulates a flush of seed germination from the upper soil seed bank.
Onopordum thistles are distinguishable from other genera of thistles with spiny stern-wings and/or leaves by having receptacles that lack bristly chaff and have deep pits surrounded by membranous extensions.
Pook, E. The effect of shade on the growth of variegated thistle (Silybum marianum L.) and cotton thistle (Onopordum sp.).
issg Database: Ecology of Onopordum acanthium (0 words)
Onopordum acanthium is a herb of the sunflower family (Asteraceae) that is native to Europe and Asia.
Soil nutrient concentrations are less important to Onopordum spp.
Principal sources: Scotch thistle (Onopordum acanthium) (WSWB, 2003)
  More results at FactBites »

 

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