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. It escapes from gardens readily, and has thereby become established in the British Isles, Scandinavia and North America.[2] This plant has become an invasive species in British Columbia, Canada.[3]Centaurea montana grows in meadows and open woodland in the upper montane and sub-alpine zones, in basic areas. It grows to 30–70 centimetres (12–28 in) tall, and flowers mainly from May to August.
Centaurea montana may be distinguished from other Centaurea species in the region by its usually entire leaves, and the blue-purple colour of the outermost ray florets. It may be distinguished from the cornflower, Centaurea cyanus, by having a single (rarely up to three) flower heads, and by its being perennial, whereas the cornflower has many flower heads and is annual. The closely related C. triumfettii has more narrowly winged stems, narrower leaves and grows in rockier areas.
^BSBI List 2007(xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 26 June 2015. Retrieved 17 October 2014.
^"Centaurea montana L." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 7 April 2024.
^"INVASIVE PLANT Mountain Bluet Centaurea montana". Invasive Species Council of BC. Retrieved 6 June 2021.
Centaureamontana, the perennial cornflower, mountain cornflower, bachelor's button, montane knapweed or mountain bluet, is a species of flowering plant...
often specifically means either C. cyanus (the annual cornflower) or Centaureamontana (the perennial cornflower). The common name "centaury" is sometimes...
Centaurea stoebe, the spotted knapweed or panicled knapweed, is a species of Centaurea native to eastern Europe, although it has spread to North America...
Scotland. By extension the name was also applied to the garden flower Centaureamontana. The blue tit was also called the "blue bonnet" or "blue bannet" in...
Centaurea diffusa, also known as diffuse knapweed, white knapweed or tumble knapweed, is a member of the genus Centaurea in the family Asteraceae. This...
Sandwort (Arenaria hispida, also present in Catalonia), Pectinated Centaurea (Centaurea pectinata, also present in Provence and northern Spain) or the Asarina...
pest control against noxious knapweeds, especially diffuse knapweed (Centaurea diffusa) and spotted knapweed. The adult weevil is dark mottled brown...
prevention coordinator at Montana State University Bozeman. Goodwin pitched her idea of using dogs for locating spotted knapweed (Centaurea stoebe) to a local...
is approximately 1,500. Olson, B. E.; Kelsey, R. G. (1997). "Effect of Centaurea maculosa on sheep rumen microbial activity and mass in vitro". J. Chem...
Pseudoregneria spicata is outcompeted by noxious weeds such as diffuse knapweed (Centaurea diffusa) and medusahead (Taeniatherum caput-medusae). It provides important...
effect on the plants. Threats to the species include the noxious weed Centaurea maculosa, spotted knapweed. The weed has a negative effect on rockcress...
pest control against noxious knapweeds, especially spotted knapweed (Centaurea maculosa). The adult fly is light greenish brown with brown-banded wings...
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