Species Search
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Knapweeds
(Genus Centaurea)
Info
Centaurea (/ˌsɛntɔːˈriːə/) is a genus of between 350 and 600 species of herbaceous thistle-like flowering plants in the family Asteraceae. Members of the genus are found only north of the equator, mostly in the Eastern Hemisphere; the Middle East and surrounding regions are particularly species-rich. Common names for this genus are centaury, centory, starthistles, knapweeds, centaureas and the more ambiguous "bluets"; a vernacular name used
(Wikipedia)
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Subgenus Centaurea
Info
Centaurea (/ˌsɛntɔːˈriːə/) is a genus of between 350 and 600 species of herbaceous thistle-like flowering plants in the family Asteraceae. Members of the genus are found only north of the equator, mostly in the Eastern Hemisphere; the Middle East and surrounding regions are particularly species-rich. In the western United States, yellow starthistles are an invasive species. Around the year 1850, seeds from the plant had arrived to the state of California. It is believed that those..
(Wikipedia)
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Section Centaurea
Info
Centaurea (/ˌsɛntɔːˈriːə/) is a genus of between 350 and 600 species of herbaceous thistle-like flowering plants in the family Asteraceae. Members of the genus are found only north of the equator, mostly in the Eastern Hemisphere; the Middle East and surrounding regions are particularly species-rich. In the western United States, yellow starthistles are an invasive species. Around the year 1850, seeds from the plant had arrived to the state of California. It is believed that those..
(Wikipedia)
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Cornflower
(Centaurea cyanus)
Info
Centaurea cyanus, commonly known as cornflower or bachelor's button, is an annual flowering plant in the family Asteraceae, native to Europe. In the past it often grew as a weed in cornfields (in the broad sense of "corn", referring to grains, such as wheat, barley, rye, or oats), hence its name. It is now endangered in its native habitat by agricultural intensification, particularly over-use of herbicides, destroying its habitat. It is also, however, through introduct
(Wikipedia)
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Brown Knapweed
(Centaurea jacea)
Info
Centaurea jacea (brown knapweed or brownray knapweed) is a species of herbaceous perennial plants in the genus Centaurea native to dry meadows and open woodland throughout Europe. It grows to 10–80 centimetres (4–31 in) tall, and flowers mainly from June to September.
(Wikipedia)
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Spotted Knapweed
(Centaurea stoebe)
Info
Centaurea stoebe is a species of Centaurea found in Northern Italy. It is also an invasive species in the United States, and particularly widespread in dryer regions of the Pacific Northwest. This species along with Centaurea diffusa are the stereotypical "tumbleweed" of the West- breaking off at the top of the roots which facilitates its seeds spreading far and wide, but arean't actually native to the North American continent, but to a similar dry climate in...
(Wikipedia)
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Greater Knapweed
(Centaurea scabiosa)
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Centaurea scabiosa or greater knapweed is a perennial plant of the genus Centaurea. It is native to Europe and bears purple flower heads.
(Wikipedia)
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Common Centaury
(Centaurium erythraea)
Info
Centaurium erythraea is a species of flowering plant in the gentian family known by the common names common centaury and European centaury.
(Wikipedia)
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Black Knapweed
(Centaurea nigra)
Info
Centaurea nigra is a species of flowering plant in the daisy family known by the common names lesser knapweed, common knapweed and black knapweed. A local vernacular name is hardheads.
(Wikipedia)
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Perennial Cornflower
(Centaurea montana)
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Centaurea montana (perennial cornflower, mountain cornflower, bachelor's button, montane knapweed or mountain bluet) is a species of Centaurea endemic to Europe. It is widespread and common in the more southerly mountain ranges of Europe, but is rarer in the north. It escapes from gardens readily, and has thereby become established in the British Isles, Scandinavia and North America.
(Wikipedia)
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Maltese Star-Thistle
(Centaurea melitensis)
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Centaurea melitensis (called Maltese star-thistle in Europe, tocalote or tocolote in western North America) is an annual plant of the Asteraceae, 1 to 11 decimetres (4 to 43 in) high, with resin-dotted leaves and spine-tipped phyllaries. This plant is native to the Mediterranean region of Europe and Africa. It was introduced to North America in the 18th century; the first documented occurrence in California is in the adobe of a building constructed in San Fernan
(Wikipedia)
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American Basketflower
(Plectocephalus americanus)
Info
Centaurea americana, commonly called American starthistle or American basketflower, is an annual native to the southern central United States and northeastern Mexico. Its common name comes from the underside of the inflorescence, which has a basket weave pattern on it and on the flowerbuds.
(Wikipedia)
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Yellow Star-Thistle
(Centaurea solstitialis)
Info
Centaurea solstitialis, yellow star-thistle, is a member of the family Asteraceae, native to the Mediterranean Basin region. The plant is also known as golden starthistle, yellow cockspur and St. Barnaby's thistle (or Barnaby thistle) The plant is a thorny winter annual species in the knapweed genus.
(Wikipedia)
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Knapweed Fritillary
(Melitaea phoebe)
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Melitaea phoebe, the knapweed fritillary, is a butterfly of the Nymphalidae family. It is found in the Palearctic ecozone, except the northernmost locations. It used to include Melitaea telona, recently revalidated as a distinct cryptic species.
(Wikipedia)
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Wig Knapweed
(Centaurea phrygia)
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Centaurea phrygia (wig knapweed) is a species of Centaurea. It is native to Europe.
(Wikipedia)
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Tyrol Knapweed
(Centaurea nigrescens)
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Centaurea nigrescens (Tyrol knapweed, short-fringed knapweed or Tyrol thistle) is a perennial plant of the star thistle genus that grows natively in Central and South-eastern Europe (from Southern Germany and Northern Italy to Romania and Bulgaria), but has also been introduced and is now a noxious weed in the Northern United States, Canada and Southern Australia. It has purple flowers and it flowers in the summer (June to September).
(Wikipedia)
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Diffuse Knapweed
(Centaurea diffusa)
Info
Centaurea diffusa, also known as diffuse knapweed, white knapweed or tumble knapweed, is a member of the genus Centaurea in the family Asteraceae. This species is common throughout western North America but is not actually native to the North American continent, but to the eastern Mediterranean.
(Wikipedia)
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Purple Star-Thistle
(Centaurea calcitrapa)
Info
Centaurea calcitrapa is a species of flowering plant known by several common names, including red star-thistle and purple starthistle. It is native to Europe but is rarely found there, it is known across the globe as an introduced species and often a noxious weed. The species name calcitrapa comes from the word caltrop, a type of weapon covered in sharp spikes.
(Wikipedia)
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Yellow-Wort
(Blackstonia perfoliata)
Info
Blackstonia perfoliata or yellow-wort is a species of flowering plant in the family Gentianaceae found around the Mediterranean Basin, but extending into northwestern Europe.
(Wikipedia)
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Iberian Knapweed
(Centaurea pullata)
Info
Centaurea pullata is a species of Centaurea found in Europe and North Africa....
(Wikipedia)
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Rough Star-Thistle
(Centaurea aspera)
Info
Centaurea aspera, the rough star-thistle, is a species of Centaurea found in Europe and in New York, United States....
(Wikipedia)
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Immortelle
(Xeranthemum annuum)
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Xeranthemum annuum is a flowering plant species also known as annual everlasting or immortelle. It is native to eastern Europe and western Asia, is cultivated as a garden flower, and has become naturalised in other parts of Europe.
(Wikipedia)
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Squarrose Knapweed
(Centaurea triumfettii)
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Centaurea triumfettii, common names: Squarrose Knapweed, is a plant belonging to the genus Centaurea of the Asteraceae family.
(Wikipedia)
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