Click on the language to view common names.
Common Names in English:
Cotton Thistle, Heraldic Thistle, Scot's Thistle, Scotch Cotton Thistle, Scotch Cotton-Thistle, Scotch Cottonthistle, Scotch Thistle, Scottish Thistle, Woolly Thistle
Common Names in Portuguese:
Cardo-Bastardo, Cardo-Espinhoso, Cardo-Selvagem
The largest family of flowering plants , the Compositae (Asteraceae), comprising about 1,100 genera and more than 20,000 species and characterized by many small flowers arranged in a head looking like a single flower and subtended by an involucre of bracts. A head may consist of both ray flowers and disk flowers, as in the sunflower, of disk flowers only, as in the burdock, or of ray flowers only, as in the dandelion.
Biennials, 50-400+ cm, coarse
, prickly. Stems usually erect
, ± branched, spiny-winged. Leaves basal and cauline; winged-petiolate (basal) or sessile (cauline) ; blade
, teeth and lobes
tipped with stout spines. Heads discoid
, borne singly or in corymbiform
arrays; (peduncles 0 or spiny
). Involucres hemispheric
or spheric. Phyllaries many in 8-10+ series. linear
, entire, tapered to stiff spines, middle
and outer often spreading
. Receptacles flat to convex
, epaleate, not bristly
with apically fringed
pits. Florets many; corollas white or purple, actinomorphic
or weakly zygmorphic, tubes
or narrowly goblet-shaped. lobes linear; anther
bases acute-tailed, apical appendages
; style branches: fused portions with minutely hairy
nodes, long, cylindric, minutely papillate
portions minute. Cypselae ± cylindric, 4-5-angled, usually ± transversely roughened, glabrous
, attachment scars
basal; pappi falling in ring
, of many barbed
, basally connate
. x = 17.
Species 25-60: introduced ; Eurasia .
Flowers: Bloom Period: June, July, August. • Flower Color: purple
Size: 4-6' tall.
Typically found at an altitude of 0 to 2,793 meters (0 to 9,163 feet).
Culture: Space 24-36" apart.
Soil: Minimum pH: 6.6 • Maximum pH: 7.8
Sunlight: Sun Exposure: Full Sun .
Temperature: Cold Hardiness: 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b. (map)
- Whittaker & Margulis,1978
- Haeckel, 1866
- Cavalier-Smith, 1981
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Brongniart, 1843
- Takhtajan, 1967
- Takhtajan Ex Reveal, 1992
- Lindley, 1833
- Family: Compositae () - Giseke, 1792, nom. cons., nom. alt.
- Order: Asterales () - Lindley, 1833
- Superorder: Campanulanae () - Takhtajan Ex Reveal, 1992
- Subclass: Asteridae () - Takhtajan, 1967
- Class: Magnoliopsida () - Brongniart, 1843 - Dicotyledons
- Subphylum: Euphyllophytina ()
- Phylum: Tracheophyta () - Sinnott, 1935 ex Cavalier-Smith, 1998 - Vascular Plants
- Subkingdom: Viridaeplantae () - Cavalier-Smith, 1981
- Kingdom: Plantae () - Haeckel, 1866 - Plants
Onopordum Acanthium Lato
Status: Accepted Name
Comment: Data Providers: African Flowering Plants Database , SANBI, New Zealand Plant Name Database, Govaerts World Compositae Checklist A-G, IPNI, Flora of China Checklist, Tropicos, Euro+Med, Flora of Tasmania Online, Australian Capital Territory Census, New Sou. GCC LSID: urn :lsid:compositae.org:names:BEB13DE0-7A1D-4C37-8B53-8491CB85A262
Last scrutiny: 14-Nov-09
Members of the genus Onopordum
ZipcodeZoo has pages for 6 species, subspecies, varieties, forms, and cultivars in this genus:
O. acanthium (Cotton Thistle) · O. acanthium acanthium (Scotch Cotton Thistle) · O. illyricum (Illyrian Cottonthistle) · O. nervosum (Moors Cotton-Thistle) · O. nogalesii (Cardo Borriquero) · O. tauricum (Bull Cottonthistle)
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Accessed through GBIF Data Portal November 22, 2007:
- Biologiezentrum der Oberoesterreichischen Landesmuseen, Biologiezentrum Linz
- Conservatoire botanique national du Bassin parisien, Conservatoire botanique national du Bassin parisien
- Missouri Botanical Garden, Missouri Botanical Garden
- NLBIF, Limnodata
- Natural History Museum, University of Oslo, Vascular Plant Herbarium, Oslo
- Natural History Museum, University of Oslo, Vascular Plants, Field notes, Oslo
- Oregon State University, Vascular Plant Collection
- School of Life Sciences, Arizona State University, Arizona State University Vascular Plant Herbarium
- The Danish Biodiversity Information Facility, Botany registration database by Danish botanists
- The Swedish Museum of Natural History
- , Botany
- The Swedish Museum of Natural History
- , Herbarium of Oskarshamn
- The Swedish Museum of Natural History
- , Lund Botanical Museum
- The Swedish Museum of Natural History
- , Plants
- Tiroler Landesmuseum Ferdinandeum, Tiroler Landesmuseum Ferdinandeum
- UK National Biodiversity Network, Environment and Heritage Service - EHS Species Datasets
- Utah Valley State College
- , Utah Valley State College Herbarium
- Biodiversity Heritage Library NamebankID: 2659065
- Catalogue of Life Accepted Name Code: Ast-452
- Global Biodiversity Information Facility Taxonkey: 4490920
- Globally Unique Identifier: urn:lsid:ipni.org:names:151702-3
- GRIN Nomen Number: 104466
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 38140
- Natural Heritage Network Species Identifier: PDAST6Q010
- U.S.D.A. Plant Symbol: ONAC
- Zipcode Zoo Species Identifier: 12771
- David J. Keil "Onopordum". in Flora of North America Vol. 19, 20 and 21 Page 57, 66, 83, 87, 96. Oxford University Press. Online at EFloras.org. [back]
- Mean = 128.490 meters (421.555 feet), Standard Deviation = 175.370 based on 4,266 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]