Doce nuevos registros de plantas vasculares para los Andes de Perú.

As a result of recent floristic studies in the highlands of Peru, we report twelve species for the Peruvian flora, such as Senecio aquilaris Cabrera, Jalcophila boliviensis Anderb. & S.E. Freire, Jalcophila ecuadorensis M.O. Dillon & Sagást., Senecio aquilaris Cabrera, Werneria spathulata Wedd., Xenophyllum pseudodigitatum (Rockh.) V.A. Funk (Asteraceae), Draba alyssoides Humb. & Bonpl., Draba loayzana Al–Shehbaz, Petroravenia friesii (O.E. Schulz) Al–Shehbaz Petroravenia werdermannii (O.E. Schulz) Al–Shehbaz, Rorippa beckii Al–Shehbaz, Weberbauera cymosa Al– Shehbaz (Brassicaceae) and Stellaria weddellii Pedersen (Caryophyllaceae). Type information, geographical distribution and habitat characteristics are presented for each taxon. Some phytogeographical aspects are discussed based upon these floristic novelties. [ABSTRACT FROM AUTHOR]