A new tetraploid agamic species, Limonium vigoi, is described from coastal populations of the Northeast of the Spain (Ebro delta). The new species is related, on morphological grounds, to L. girardianum (Guss.) Fourr. and L. grosii L. Llorens, from which it could be easily discriminated by its retuse leaves, the basal ones usually withered at anthesis, the very short (or even absent) leaf apiculum, the denser and longer (up to 0.7 mm) hairs of the calyx tube and the deeper colour of the corolla. In addition, L. girardianum is triploid, whereas L. vigoi and L. grosii are tetraploid. Limonium girardianum and L. grosii show the same pollen/stigma combination (A/cob type) which differs from that exhibited by L. vigoi (B/papillate type). The types of Limonium girardianum f. retusum Pignatti and L. glaucophyllum Pignatti, two taxa described from the Ebro delta, could not be distinguished from L. girardianum, but they clearly differed from L. vigoi.