knapweed

(redirected from Centaurea)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Centaurea: Centaurea solstitialis

knapweed

any of several plants of the genus Centaurea, having purplish thistle-like flowers: family Asteraceae (composites)
Mentioned in ?
References in periodicals archive ?
Amongst the many cases published over the last years, we can cite the description of Centaurea tripontina Lopez-Alvarado, L.
Scientific name Common name Pre-1940 Alliaria petiolata garlic mustard Artemesia vulgaris mugwort Carduus nutans (D) musk thistle Centaurea stoebe spotted knapweed Cirsium arvense Canada thistle x Cirsium vulgare bull thistle x Clematis terniflora sweet autumn clematis Conium maculatum (D) poison hemlock Convolvulus arvense field bindweed x Coronilla varia (P) crown vetch x Cynanchum louiseae black swallow-wort x Daucus carota Queen Anne's lace x Dioscorea polystachya (D) Chinese yam Dipsacus fullonum common teasel x Dipsacus laciniatus cut-leaved teasel x Euphorbia esula leafy spurge x Glechoma hederacea creeping Charlie x Hesperis matronalis dame's rocket x Humulus japonicus (D) Japanese hops Hypericum perforatum St.
Although most of the economic impacts of Centaurea have been incurred in the western rangelands of North America (Hakim, 1979; Sheley et al, 1998; Jacobs, 2012), land managers are also concerned when the invader appears in sensitive habitats.
incubacea, Orchis antropophora, Serapias vomeracea) as well as Centaurea jacea subsp.
Con frecuencia el polen de especies de estos generos (y de otros como Carduus, Centaurea y Taraxacum) induce reacciones positivas en el ensayo clinico, pero en general se trata de "reacciones de grupo" o "cruzadas" con las especies verdaderamente alergogenas e incluso con alimentos, una coincidencia antigenica demostrada a nivel molecular (Egger et al.
i) The Kis-Gaja Ridge site is located in a shallow depression (dolina) of a karstic plateau with semi-humid tall grasses (Arrhenaterum elatius, Dactylis polygama, Brachypodium pinnatum) rich in different Asteraceae (Cirsium arvense, Centaurea spp.
The presence of Salix caprea, Frangula alnus, Rubus idaeus, Trifolium repens, Centaurea cyanus, Arctium tomentosum, Carum carvi, and Fagopyrum esculentum pollen in those honey samples points to a wide diversity of melliferous plants within the area of the Gomerta Landscape Reserve.
Hidalgo= Centaurea repens), of the Asteraceae family, is a perennial invasive weed in rangelands and irrigation agricultural sites (Table I; Ibarra and La Porte, 1944; Lopez-Alvarado et al.
Digitalis mertonenssis -- the colour of crushed strawberries, pink delphiniums and hazel domes -- were woven through with a plum-purple Centaurea Jordy.