Amoena
White standards, colored falls.
Bicolor
Standards a different color from the falls.
Bitone – Standards and falls different shades of the same color. Falls usually darker.
Blend
Combination of 2 or more colors, smoothly or unevenly mixed.
Luminata
Style arms and hafts are white or yellow. Remainder of the flower is washed with color, with paler veins.
Border – The edge of the falls is a different color than the color of the standards or falls. If the border is narrow it is called a rim or halo. If the border is wide it can be called a band.
Glaciata – Iris lacking the purple anthocyanin pigment; bright glowing white, yellow, pink, or orange.
Ground color – Usually mentioned with plicatas: solid base color under dots or peppering.
Neglecta – Blue or purple bi-tone, the standards being the lighter tone.
Peppering – A plicata patterning with a sprinkling of contrasting color over an iris with a yellow or white background color.
Plicata – Striped, dotted, or stitched margin color on lighter ground color.
Reverse Amoena – A rarer combination of colored standards and white falls.
Reverse Bi-tone – When the standards are the darker shade.
Self – Standards and falls are the same color.
Signal – A patch of contrasting color at the tip of the beard.
Stitching – Stitch-like markings around the edge of the petals.
Sunburst – White or light streaks fanning out on the falls, around or beyond the beards.
Variegata – Yellow standards, reddish-colored falls.
Zonal – Distinct white or light area around the beard in the middle of the falls.