Iris Glossary

Japanese woodblock print, 1907
Amoena – White standards over colored falls.
Anther – The pollen-bearing part of the stamen.
Apogon – Literally, without a beard. Applied to rhizomatous irises which have no beard or crest.
Arilbred – Hybrid bearded varieties crossing aril (onco and regelia) and eupogon or true bearded irises.
Beard -Line of fuzzy hairs at the top of the falls.
Bicolor – Standards of one color, over falls of a different color.
Bitone – Standards and Falls are two tones of the same color.
Blend – Two or more colors blended together.
Diploid – Having two sets of chromosomes.
Falls – 3 lower petals of iris flower.
Flounces – Appendages on a Space Age iris extending from the tip of the beard like little petals.
Form – Usually refers to the shape of a flower.
Ground – The underlying color of a petal.
Hafts – Top part of falls alongside the beard.
Historic – An iris more than 30 years of age.
Horns – Spear like projections extending from the tip of the beards on a Space Age iris.
Hybrid – The offspring of genetically unlike parents.
Hybridization – The cross polination of two genetically different varieties.
Luminata – Wash of color in falls with paler veining; clear unmarked area on hafts; usually paler edge to petals.
Neglecta – Light blue standards over deeper colored falls.
Noid – Literally No I.D., an iris that has lost it’s proper name.
Pistil – The female reproductive structure of the flower. in irises this includes the ovary, style, style arm, and stigmatic lip.
Plicata – Stippled, stitched or solid margin color on lighter ground color.
Pogon – A word of Greek origin meaning beard, commonly used to describe any bearded iris

Japanese woodblock print, 1910
Rebloomer – Iris that blooms in any other season in addition to its normal spring bloom time; also called remontant
Rhizome – A modified creeping or underground stem, often enlarged to serve as a storage organ, and with roots and buds developing from the nodes.
Self – An iris of one all-over color
Signal – Color spot just below the beard. Mostly used in reference to beardless irises which often have a signal patch where a beard would be.
Spathe – In early stages of development the spathes enclose and protect the young flower buds. May be green and fleshy or dry and papery. sometimes purple tints come in as well.
![]() Japanese woodblock print, 1926 |
Space ager – Iris with flounces, horns or spoons projecting from the beard tiips.
Spoons – Spooned appendages extending from beard on a Space Age iris.
Stamen – The pollen-bearing structure of the flower consisting of a filament and anther containing the pollen grains. In an iris bloom they are held below the style arms.
Style arms – Small stiff segments above the beards, which end with the style crest.
Tetraploid – Having 4 sets of chromosomes.
Triploid – Having three sets of chromosomes.
Variegata – Yellow standards over reddish colored falls.