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Extensive areas in the upper Midwest have been invaded by spotted knapweed, and effective management strategies are required to reestablish native plant communities. We examined effects of mowing, mow...
Centaurea aziziana Rech.f. (Asteraceae) is recorded for the first time (B9 Van province) for the flora of Turkey. The diagnostic characters of C. aziziana are described and its habitat and conservatio...
Centaurea L. (Asteraceae) is one of the largest genera in Turkey. The chromosome number and morphology of 8 taxa belonging to the genus Centaurea were investigated using an image analysis system. Amon...
The temperature requirement is important factor for adaptation to an ecology of any plant species.Plant seeds growing in the places with high altitutes are excepted to well develop at lower temperatur...
A new Centaurea L. (Asteraceae) species from Turkey is described and illustrated. Centaurea dursunbeyensis Uysal & Köse exists on limestone crevices in ancient Dursunbey Forest (Balikesir) in wes...
Centaurea solstitialis L., yellow star thistle, is an annual weed that belongs to the family Asteraceae. In Turkey, this weed can be found in pasture areas, along roadsides, in cultivated areas and i...
Centaurea pamphylica Boiss. & Heldr. (Family: Asteraceae), commonly known as ‘pamphylia daisy', is a Turkish endemic species of the genus Centaurea that comprises ca. 500 species, many of which have b...
Grosheimin (1) and cynaropicrin (3) sesquiterpenes were isolated from the flowers of Centaurea helenioides Boiss., an endemic plant of Turkey. The products are known as they occur in another species, ...
Centaurea aucheri (DC.) Wagenitz is one of the species of Asteraceae that has not been the subject of many investigations. Different species of this genus have been used in traditional medicine. In th...
Recent exploration and collecting from areas of serpentine soils in western and central regions of Turkey have shown that there is still much to be discovered. This work has led to the identification ...
The whole plant material fo Centaurea cuneifolia Sm. afforded three sesquiterpene lactones; cnicin (1), dehydromelitensin (2) and dehydromelitensin-8-[(2'-a-hydroxy-b- hydroxyethyl)-acryloyl)] (3), th...

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