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The aerial stems of three species commonly named "carquejas", are used either in folk medicine or to obtain phytotherapeutic drugs. These species are: Baccharis articulata (Lam.) Persoon, Baccharis crispa Sprengel and Baccharis trimera (Less.) De Candolle, which are members of the Asteraceae. The first two are official entries in the Farmacopea Nacional Argentina 6th ed. (1978). The parts used are the winged aerial stems in the vegetative state. The histological features are described and illustrated, in order to provide the means to their accurate identification at the crude drug stage. [ABSTRACT FROM AUTHOR]

Salvia hispanica L. (chia)-Lamiaceae, is a species of dietary and medicinal value and it is a source of Omega-6 and Omega-3 fatty acids, proteins, antioxidants and soluble and insoluble fibres. There is not enough available data about the possibilities that the cultivation may be carried out successfully in the south of Santa Fe province, mainly considering the incidence of late frosts. Due to the shortage of information about the cultivation in the field of S. hispanica in different Argentinean regions, and taking into account its growing demand and its importance as a medicinal dietary product, the aim was to assess the possibility of carrying out the cultivation of this species in the south area of Santa Fe province -- Argentina- (33º14´ S, 61º2´ W). Plant height, crop cycle length, ear weight and seed fatty acid composition were evaluated for different sowing dates. Differences were found between early and late sowings, would be early January more suitable for the cultivation in this area. [ABSTRACT FROM AUTHOR]