See Show Calender


You are here: Iris Wiki>Spec Web>SpeciesIrises>SpecSetosa (24 Jun 2023, TLaurin)Edit Attach

■ (SPEC) Iris setosa Pallas ex Link.

1995, Botanical author Pallas

Iris setosa Pallas ex Link. (Peter Simon Pallas, 1820, Asia, Alaska); Section Limniris , Series Tripetalae . It receives its name because usually the standards are reduced to bristles (setae).

See below:

alaskan setosa seed.jpgBHP 7358-X2 i setosa.jpgderrspurple.jpegDN-I-SETOSA -TALL BLUE CLUMP copy edited-1.jpgDykes plate XLVIII setosa.jpgI-setosa-alba.jpgI-setosa-var-arctica.jpgI.setosa01.jpgI.setosa02.jpgI.setosa03.jpgI.setosa04.jpgI.setosa05.jpgI SETOSA EI.jpgisetosa06.JPGisetosa07.JPGisetosa08.JPGkirigami01.jpgsetLav.jpgsetosa01.jpgsetosa02.JPGsetosa03.jpgsetosa1.JPGsetosa2.jpgsetosa4.JPGsetosa5b.jpgsetosa9.JPGsetosa 3.jpgsetosa edited-1.jpgsetosadouble.jpegsetosaEdwardsBotReg.jpgsetosapink.jpegsetosapink1.jpegsetosapink2.jpegsetosapurple.jpegsetosaredpurple1.jpegsetosaredtourist3.jpegsetosaredtourist4.jpegsetosaredtourist5.jpegsetosatourist.jpegsetosatourist1.jpegsetosatourist6.jpegSIGNA 09TR223 setosa enlarged.jpgSpecSetosaNH.jpg


Pallas ex Link, Jahrb. 1: iii, 71. 1820;
Curtis's botanical Magazine, table 2326 Iris brachycuspis. Fischer Mscr.The interior upright latinise of the corolla are in this species so remarkably short, as to be frequently altogether concealed from view by the external.We are informed by our friend Dr. Fischer, who lately paid a visit to this country, that it is a native of the north-eastern part of Siberia, near Ochtosk, on the Lena river, from whence the seeds were brought to the Gorenki garden, by Professor Adams, and distributed thence by Dr. Fischer to several parts of Europe.The roots are said to be poisonous.Communicated by Messrs. Whitley, Brame, and Milne, from the Fulham nursery, in July 1819.
Fig. 22. Waddick & Zhao, Iris of China, 1992, illustrated in color;
Edwards’s Botanical Register, vol. 33: t. 10 (1847) [S.A. Drake]
Van H. 1875;
Dykes, The Genus Iris tab. 23. 1913, Description. Rootstock , a thick rhizome covered with the fibrous remains of old leaves. Leaves , ensiform, green, slightly glaucous and usually tinged with purple at the base, 1-2 ft. long and ½-1 in. broad. Stem , stout, solid, deeply forked, bearing several heads of flowers, of which those on the first lateral branch rise as high as those on the main stem. A reduced leaf is attached at each bifurcation. Spathe valves, narrow, acuminate, unequal, 1t-2 in. long, the outer valve being the shorter, green or flushed with purple or slightly scarious, 2-3-flowered. Pedicel, 1-1½ in. long. Ovary , acutely trigonal, green or flushed with purple. Tube , ¼--i in., shorter than the ovary, and scarcely separated from it by any construction. Falls . The orbicular or more usually heart-shaped blade narrows abruptly to the short wedge shaped haft. The latter is veined with purple on a yellowish white ground. The white ground, veined with purple, is visible for a short distance on the blade, which then becomes a uniform purple with inconspicuous darker veins. The exact shade of purple is very variable ; it is usually a blue purple but has sometimes a distinctly red tinge. Standards . Variable in shape but not more than ½-¾ inch long. The most usual form is broad at the base, narrowing abruptly to a long fine point. Less frequently the width increases a second time before narrowing to a short point (see Fig. 12). Styles , short, oblong, about 1 in. long, whitish with purple keel. Crests , overlapping, subquadrate, with coarsely serrate edges. Stigma , a rounded, triangular tongue. Filaments , purple or yellow stained with purple. Anthers , purple. Pollen , cream. Capsule , much inflated, trigonal with grooved sides, scarcely twice as long as broad. The seeds soon become detached and rattle m the capsules. Seeds , light brown, glossy, with conspicuous raphe down one side (see Plate XLVIII, Fig. 15.ObservationsIt is not at present possible to separate and define the various forms of this Iris that are already known to us. It was first found by Pallas in Siberia and extends to the extreme north-eastern corner of Asia. From there it passes into Alaska and finally reappears again on the east coast of Canada and Maine. Under the names of setosa, setosa canadensis, Hookeri and tridentata, I have found growing in gardens at least six forms of this Iris. What is more curious is that each form when self-fertilized comes practically true from seed. The variations are in stature, in the green or purple base to the leaves, in the green or purple flushed spathes and ovary, in the foliage and in the shape of the segments. The various forms, when grown side by side, are obviously distinct and yet equally obviously unworthy each of a specific name. The features that are common to all are the minute, bristle-like standards from which the species obtained its name, the large heart-shaped falls, the curious way in which the topmost lateral branch rises as high as the main stem, the inflated capsules with thin membranous walls and the characteristic seeds (see Plate XLVII I, Fig. 15), which are totally unlike those of any other species.Until seeds have been obtained from the various localities and plants raised and grown under identical conditions, it seems unwise to attempt to separate the various forms, for the differences that are apparent in the living plants are· usually quite invisible in the ordinary herbarium specimens. I have at last succeeded in obtaining seeds both from the east coast of America and from Eastern Asia but the plants raised from them show no difference except in colour and size. The Asiatic examples are of a reddish purple and the stems 18-24 in. high, while those from the coast of Maine have a 10-12 in. stem and blue-purple flowers.I. setosa varies in height from about a foot to slightly over two feet. By some curious confusion, there is now in cultivation a dwarf form under the name of I. Douglasiana pygmaea. It is very floriferous and a desirable garden plant. It is possible, and indeed probable, that this may be the Labrador or Alaskan form 1, for all the Labrador specimens that I have seen were of this size and appearance and so too apparently were the Alaskan plants described by Miss Eastwood as I. arctica. On the other hand, the tallest form that I possess was sent to me from Russia and said to be from Kamchatka. I am afraid, however, that especially in the case of this Iris, I am very unwilling to accept as authentic any supposed local form that does not come to me direct from the locality in question. The reason is that I. setosa with its pointed tongue-like stigma is certainly self-fertile. Every flower produces a capsule of seed, which when ripe is very easily scattered broadcast. The seeds germinate as readily and may thus oust the original occupants of the spot on which they fall. Probably some such cause as this accounts for the name of I. Douglasiana pygmaea attached to what is undoubtedly a form of I. setosa.Cultivation presents no difficulty in any soil not too strongly impregnated with lime. The plants enjoy abundant moisture during the growing season but flower well, though with smaller blooms, even in poor, dry sand. The species is very easily raised from seed and the young plants can generally be relied upon to flower before they are fifteen months old. No white-flowered form appears to be in cultivation, but a specimen was found by Dr Takeda in 1909 on the Tomoshiri Promontory, near Nemuro, Yezo.
Bon. 1920; Wal. 1928; Per. 1933; 1938; Hocker 1938;
A.M., R.H.S. 1931;
The Gardeners' Chronicle 3rd ser. 89: 440. 6 June 1931;


Arctic Iris; Iris arctica, Eastwood; Iris brachycuspis , Fischer ex Sims; Xiphion brachycuspis, Alef; Xyridion setosum, Klatt; Iris yedoensis, Franch. et Savat.

Chromosome counts

2n=38, Simonet, 1934; 2n=38, Hara & Kuro., 1963; 2n=34,36, Sokolov., 1963; 2n=38, Hedberg, 1967; 2n=38, Zhukova, 1967, 2n=38, Zhukova, 1980; 2n=38, Dawe & Murr. 1981; 2n=38, Laublin & Cappadocia, 1992; 2n=36, Rudyka, 1995.


Iris setosa Pallas ex Link. Not to be confused with Iris hookeri synonym Iris setosa var. canadensis.

Iris setosa cultivars;

'Alpina'; 'Arctica'; 'Arctic Goldheart'; 'Arctic Lavender'; 'Arctic Rebloomer; 'Beautiful Stranger'; 'Blota Hunka'; 'Hecitu Welo'; 'Hehak Sapa'' 'Hoccaido'; 'Iktomi'; 'Itazipejuta'' 'Kiyuksa'; 'Kirigamini'; 'Kosho-En'' 'Mahpiyaska'' 'Micante'' 'Moorsee'; 'Nana'; 'Nasuensis'' 'Park Farm Hybrid'' SpecPieknaNieznajoma; 'Platyrhyncha'; 'Serotina' 'Setosa Interior'; 'Sylvanshine; 'Taplow Violet'; 'Tatankask'; 'Tricuspis'; 'Wahupa Wa'; 'Wanikiya'; 'Wiyanna'.



Distribution and Cultivation

Please do not enter images that are not your own without owners' permission, this is against Wiki policy

"Although the Encyclopedia is free to all, it is supported by Emembership in AIS, If you would like to help sustain this reference, for $15 you can become an Emember, click here."

Interested in Iris Species? Please visit the: Species Iris Group of North America website.

To Report errors do not use comment box but contact the Iris Encyclopedia Photo Manager or Iris Encyclopedia Manager Comment box is reserved for added information about the topic.

Your Observations Are Valued. Please make note of bud count, branching, purple based foliage and bloom time, etc. Because these are affected by climate, note date, year and geographic location and write these and other comments in the comment box below.


-- Main.RPries - 2009-12-23
I Attachment Action Size Date Who Comment
BHP_7358-X2_i_setosa.jpgjpg BHP_7358-X2_i_setosa.jpg manage 168 K 21 Feb 2016 - 08:09 BrockHeilman Please contact Brock Heilman for image use.
DN-I-SETOSA_-TALL_BLUE_CLUMP_copy_edited-1.jpgjpg DN-I-SETOSA_-TALL_BLUE_CLUMP_copy_edited-1.jpg manage 68 K 17 Sep 2010 - 02:21 UnknownUser Lorena Reid photo
Dykes_plate_XLVIII_setosa.jpgjpg Dykes_plate_XLVIII_setosa.jpg manage 36 K 04 Jan 2011 - 15:30 UnknownUser from Dykes plate
I-setosa-alba.jpgjpg I-setosa-alba.jpg manage 49 K 13 Oct 2010 - 18:49 EleanorHutchison Photo by El Hutchison, near Winnipeg, Manitoba, Canada, Z3
I-setosa-var-arctica.jpgjpg I-setosa-var-arctica.jpg manage 52 K 13 Oct 2010 - 18:46 EleanorHutchison Photo by El Hutchison, near Winnipeg, Manitoba, Canada, Z3
I.setosa01.jpgjpg I.setosa01.jpg manage 118 K 22 Sep 2014 - 14:05 UnknownUser Photo scanned from the John Weiler slide collection
I.setosa02.jpgjpg I.setosa02.jpg manage 54 K 22 Sep 2014 - 14:08 UnknownUser Photo scanned from the John Weiler slide collection
I.setosa03.jpgjpg I.setosa03.jpg manage 62 K 22 Sep 2014 - 14:10 UnknownUser Photo scanned from the John Weiler slide collection
I.setosa04.jpgjpg I.setosa04.jpg manage 66 K 22 Sep 2014 - 14:13 UnknownUser Photo scanned from the John Weiler slide collection
I.setosa05.jpgjpg I.setosa05.jpg manage 68 K 22 Sep 2014 - 14:15 UnknownUser Photo scanned from the John Weiler slide collection
I_SETOSA_EI.jpgjpg I_SETOSA_EI.jpg manage 124 K 08 Jul 2016 - 12:22 Main.ruiris from the book 'The Iris' (G. Rodionenko et al., 1981)
SIGNA_09TR223_setosa_enlarged.jpgjpg SIGNA_09TR223_setosa_enlarged.jpg manage 39 K 05 Jan 2011 - 14:33 UnknownUser Pries photo
SpecSetosaNH.jpgjpg SpecSetosaNH.jpg manage 48 K 23 Jun 2013 - 13:33 Main.Betsy881 Photo by Nyla Hughes
alaskan_setosa_seed.jpgjpg alaskan_setosa_seed.jpg manage 47 K 29 Sep 2010 - 16:42 UnknownUser Alaskan Setosa Seed
derrspurple.jpegjpeg derrspurple.jpeg manage 102 K 20 Feb 2020 - 16:13 UnknownUser Photo scanned from the Carla Lankow slide collection
isetosa06.JPGJPG isetosa06.JPG manage 132 K 21 Oct 2014 - 02:32 UnknownUser Photo by Joe Pye Weed's Garden
isetosa07.JPGJPG isetosa07.JPG manage 92 K 21 Oct 2014 - 02:40 UnknownUser Photo by Joe Pye Weed's Garden
isetosa08.JPGJPG isetosa08.JPG manage 78 K 21 Oct 2014 - 02:42 UnknownUser Photo by Joe Pye Weed's Garden
kirigami01.jpgjpg kirigami01.jpg manage 51 K 17 Jul 2015 - 14:10 UnknownUser Photo by Barry Blyth-Australia
setLav.jpgjpg setLav.jpg manage 40 K 16 Jan 2010 - 21:09 Main.shanatse I. setosa var arctica: lavender variant
setosa01.jpgjpg setosa01.jpg manage 61 K 17 Jul 2015 - 14:12 UnknownUser Photo by Barry Blyth-Australia
setosa02.JPGJPG setosa02.JPG manage 594 K 15 Oct 2015 - 02:45 UnknownUser Photo by Don McQueen,London, Ont. Canada Zone5.
setosa03.jpgjpg setosa03.jpg manage 210 K 14 Jun 2016 - 22:39 UnknownUser Photo by Marty Shafer/Jan Sacks-Joe Pye Weed's Garden
setosa1.JPGJPG setosa1.JPG manage 75 K 10 Feb 2012 - 18:12 Main.htb ©2002 Laurie Frazer
setosa2.jpgjpg setosa2.jpg manage 160 K 14 Jun 2016 - 02:22 UnknownUser Photo by Eleanor Hutchison-Manitoba,Canada
setosa4.JPGJPG setosa4.JPG manage 774 K 14 Dec 2017 - 15:07 UnknownUser Photo by Cascadia Iris Gardens
setosa5b.jpgjpg setosa5b.jpg manage 73 K 17 Jan 2010 - 16:19 Main.htb ©2002 Laurie Frazer
setosa9.JPGJPG setosa9.JPG manage 177 K 24 Jun 2023 - 15:14 UnknownUser Photo by Verna Laurin-Willowdale-ON-Canada
setosaEdwardsBotReg.jpgjpg setosaEdwardsBotReg.jpg manage 79 K 24 Jul 2016 - 18:14 BobPries Edwaeds Botanical Register
setosa_3.jpgjpg setosa_3.jpg manage 66 K 16 Jan 2010 - 21:08 Main.shanatse I. setosa var arctica
setosa_edited-1.jpgjpg setosa_edited-1.jpg manage 52 K 23 Dec 2009 - 19:56 UnknownUser Plate from Dykes Genus Iris
setosadouble.jpegjpeg setosadouble.jpeg manage 73 K 21 Feb 2020 - 14:30 UnknownUser Photo scanned from the Carla Lankow slide collection
setosapink.jpegjpeg setosapink.jpeg manage 78 K 20 Feb 2020 - 15:48 UnknownUser Photo scanned from the Carla Lankow slide collection
setosapink1.jpegjpeg setosapink1.jpeg manage 73 K 21 Feb 2020 - 15:23 UnknownUser Photo scanned from the Carla Lankow slide collection
setosapink2.jpegjpeg setosapink2.jpeg manage 78 K 21 Feb 2020 - 15:39 UnknownUser Photo scanned from the Carla Lankow slide collection
setosapurple.jpegjpeg setosapurple.jpeg manage 87 K 21 Feb 2020 - 15:26 UnknownUser Photo scanned from the Carla Lankow slide collection
setosaredpurple1.jpegjpeg setosaredpurple1.jpeg manage 121 K 21 Feb 2020 - 15:31 UnknownUser Photo scanned from the Carla Lankow slide collection
setosaredtourist3.jpegjpeg setosaredtourist3.jpeg manage 73 K 21 Feb 2020 - 15:48 UnknownUser Photo scanned from the Carla Lankow slide collection
setosaredtourist4.jpegjpeg setosaredtourist4.jpeg manage 98 K 21 Feb 2020 - 15:45 UnknownUser Photo scanned from the Carla Lankow slide collection
setosaredtourist5.jpegjpeg setosaredtourist5.jpeg manage 84 K 21 Feb 2020 - 15:42 UnknownUser Photo scanned from the Carla Lankow slide collection
setosatourist.jpegjpeg setosatourist.jpeg manage 87 K 20 Feb 2020 - 15:36 UnknownUser Photo scanned from the Carla Lankow slide collection
setosatourist1.jpegjpeg setosatourist1.jpeg manage 97 K 20 Feb 2020 - 15:39 UnknownUser Photo scanned from the Carla Lankow slide collection
setosatourist6.jpegjpeg setosatourist6.jpeg manage 71 K 20 Feb 2020 - 17:03 UnknownUser Photo scanned from the Carla Lankow slide collection
Topic revision: r40 - 24 Jun 2023, TLaurin
This site is powered by FoswikiCopyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding Iris Wiki? Send feedback