The complex Asphodelus fistulosus-A. ayardii (Asphodelaceae) in the middle Ebro Valley. This work recognizes the presence in the Ebro Valley of four species of the genus Asphodelus: A. ayardii Jahand. & Maire, A. cerasiferus J. Gay, A. fistulosus L. and A. serotinus Wolley-Dod. About these species, on discusses the morphology, taxonomic treatment, distribution, habitat and phenology of A. ayardii and A. fistulosus, two taxa badly known in the Ebro Valley. In the study area is dominated by A. fistulosus on A. ayardii, while that A. tenuifolius would not be present. The transport infrastructure conducive to its extension through the Ebro Valley. Provides pictures, distribution maps and the relationship of the studied material. Key words: Asphodelaceae, Asphodelus, Asphodelus fistulosus, Asphodelus ayardii, morphology, taxonomy, distribution, Ebro Valley, Iberian Peninsula.... [Leer más...]