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Centaurea. Centaurea (/ ˌsɛntɔːˈriːə /) [1] is a genus of over 700 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.
Centaurea cyanus is an annual plant growing to 20–100 centimetres (8–39 in) tall, with grey-green branched stems. The leaves are lanceolate and 3–10 cm (1–4 in) long. [4] The flowers are most commonly an intense blue colour and arranged in flowerheads (capitula) of 1.5–3 cm diameter, with a ring of a few large, spreading ray florets ...
Centaurea alba. Centaurea alba is a species of Centaurea found in the Iberian Peninsula in southern and central Spain and in a small neighbouring area in the interior of Portugal. There are three recognised subspecies, and of one subspecies, the nominate, there are furthermore three varieties . It has been called pale knapweed in English. [ 2]
Centaurea mollis Waldst. & Kit. Centaurea montana, the perennial cornflower, [1] mountain cornflower, bachelor's button, montane knapweed or mountain bluet, is a species of flowering plant in the family Asteraceae, endemic to Europe. It is widespread and common in the more southerly mountain ranges of Europe, but is rarer in the north.
Centaurea stoebe. L. Centaurea stoebe, the spotted knapweed or panicled knapweed, [ 1 ] is a species of Centaurea native to eastern Europe, although it has spread to North America, where it is considered an invasive species. It forms a tumbleweed, helping to increase the species' reach, and the seeds are also enabled by a feathery pappus.
Centaurea solstitialis is an annual herb from the family Asteraceae. During the vegetative stage it forms a rosette of non-spiny leaves, between 5–20 centimetres (2–8 inches) in diameter. As the summer approaches, it produces a flowering stem up to 1 metre (3+1⁄2 feet) in height. [ 2 ] The leaves at the base are lobed and range between 5 ...
Puschk. ex Willd. 1803. Centaurea macrocephala is a species of flowering plant in the family Asteraceae, and a member of the thistle tribe, Cardueae (Cynareae). It has many common names, including bighead knapweed, [1] big yellow centaurea, [2] lemon fluff, [3] yellow bachelor's button, [4] yellow hardhat, [5] and Armenian basketflower. [6]
The following species in the flowering plant genus Centaurea are accepted by Plants of the World Online. [1] Species in this genus hybridize readily. [2] Centaurea acaulis L. Centaurea achaia Boiss. & Heldr. Centaurea achilleifolia Homrani-Bakali & Susanna. Centaurea achtarovii Urum. Centaurea acicularis Sm.