Spanish iris (Iris xiphium) belongs to the Iridaceae (the Iris family). It is a perennial herb that is native to Spain, Portugal, southwestern France and southern Italy. It is also known as a small bulbous iris. This iris can reach up to 80 cm in height. The grayish-green leaves are linear, emarge in fall and die after the flowers fade. The blue, violet, white or yellow flowers are around 6 cm across, and bloom in May and June. A popular hybrid (Iris tingitana × Iris xiphium) is known as Dutch iris.