Leaves channelled, to 1 m long, 24 mm wide. Stem 80-140 cm tall. Flowers 1-3 in various combinations of white, blue, orange or yellow, 9.5-14 cm wide; spring. Falls with a claw 4-6 cm long, blade 4-5 long. Style branches 5-7 cm long, wider than claw.
A group of hybrids derived from I. tingitana and I. xiphium, with a lesser contribution from I. latifolia.
Most of the older cultivars carry the Iris mild mosaic virus (IMMV)
In Australia Edward (Ted) Armstrong of Red Hill Victoria, who died in 1985, was an outstanding breeder and had 7 cultivars registered with the Bulbous Iris Registrar in Holland.These were:'Blue Haze','Gwen Donnell','Marina','Mary Armstrong','Pastel Princess','Silver Dale' and 'Viscount'. Of these, 2 remain:'Marina' which is flax blue with a small orange signal, and 'Viscount' which has pale blue standards and rich deep violet blue falls with an orange blaze.
Source: (2005). Iridaceae. In: . Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.
Bluish white standards, pale yellow falls with golden signals.
Orange-bronze to brown.
Blue standards, white falls with yellow signal.
White self with yellow signals.
Pale sky blue self with yellow signal.
Golden yellow self, very symmetrical with straight standards.
Pale lavender self.
Dark royal blue, small yellow signals.
Violet, large yellow signals edged in blue.
Royal blue standards, very pale blue falls with yellow signals.
Ivory white with yellow signals.
Violet standards, light blue falls, yellow signals.
Medium blue, golden signals.
Pure white self.
Cream-white standards, white falls with yellow signals.