The classical approach to predicting the geographical extent of species invasions consists of training models in the native range and projecting them in distinct, potentially invasible areas. However, recent studies have demonstrated that this approach could be hampered by a change of the realized climatic niche, allowing invasive species to spread into habitats in the invaded ranges that are c...

Short-fringed or tyrol knapweed, Centaurea dubia (Asteraceae) is an invasive plant of fields and roadsides in the eastern United States. Insects from the plant’s native Eurasian range have been introduced into North America in an attempt to control the spread of related Centaurea species. One of these biological control agents, Urophora quadrifasciata (Diptera: Tephritidae), a picture-winged se...

the essential oils from compositae specie of iran: centaurea behen l. obtained by hydrodistillation was analyzed by gc and gc/ms.  β-caryooyllane (24.5%), β-selinene (13.9%) and valencene (11.7%) were the main components among the sixteen constituents characterized in the oil of centaurea behen representing  93.7% of the total components detected.

BACKGROUND Premenstrual Syndrome (PMS) is a common problem in women. Zataria multiflora Boiss is a valuable plant. This herbal plant has been used in different conditions. OBJECTIVES The study was performed to investigate the effects of Zataria multiflora Boiss to control PMS symptoms. MATERIALS AND METHODS This study was a double-blinded, prospective randomized trial. The study population ...

UNLABELLED Ferula ovina (Boiss.) Boiss. is a traditional Iranian flavoring agent used as an ingredient of spices and condiments. METHODS AND RESULTS GC-MS analyses of F. ovina aerial parts' essential oil revealed the presence of a number of rare aromatic esters of monoterpenic alcohols. The structures of these esters were corroborated by synthesis, and one of them, bornyl 4-methoxybenzoate, t...

The genus Centaurea L. (Asteraceae, tribe Cardueae, subtribe Centaureinae) comprises ca. 600 species distributed in Asia, Europa, North Africa and America (Hickey and King, 1981; Heywood, 1979). Turkish flora numbers 187 species, 114 of which being endemic (Davis, 1975; Davis et al., 1988; Wagenitz et al., 1988; Guner et al., 2000; Duran and Duman, 2000; Turkoglu et al., 2003). Centaurea ptosim...