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Iris versicolor L.
HARLEQUIN BLUEFLAG
Purple Iris; Northern Blue Flag; Harlequin Blue Flag

Life   Plantae   Monocotyledoneae   Iridaceae   Iris

Iris versicolor, Blue flag Iris, Howard County, MD, Helen Lowe Metzman ---.
© Copyright source/photographer · 5
Iris versicolor, Blue flag Iris, Howard County, MD, Helen Lowe Metzman ---.

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Associates · map
FamilyScientific name @ source (records)
Andrenidae  Andrena wilkella @ CUIC_ENT (1)
Botryosphaeriaceae  Diplodia @ BPI (1)

Phyllosticta iridis @ BPI (13)
Dermateaceae  Mollisia iridis @ BPI (5)
Halictidae  Agapostemon splendens @ UCMS_ENT (1)

Agapostemon virescens @ CUIC_ENT (4)

Lasioglossum foxii @ CUIC_ENT (1)

Lasioglossum pilosum @ UCMS_ENT (1)
Megachilidae  Megachile latimanus @ UCMS_ENT (1)
Mycosphaerellaceae  Didymella iridis @ BPI (1)

Heterosporium echinulatum @ BPI (1)

Heterosporium gracile @ BPI (10)

Septoria densiuscula @ BPI (1)
Pleosporaceae  Alternaria iridis @ BPI (1)
Pucciniaceae  Puccinia iridis @ BPI (119)

Puccinia majanthae @ BPI (1)

Puccinia sessilis @ BPI (20)
Turritellidae  Vermicularia liliacearum @ BPI (1)
Valsaceae  Asteroma venulosum @ BPI (1)
Xylariaceae  Sphaeria iridis @ BPI (1)
_  Didymellina macrospora @ BPI (1)

Didymellina poecilospora @ BPI (1)

Uredo iridicola @ BPI (12)

Uredo iridis @ BPI (1)

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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=IRVE2 ---> https://plants.usda.gov/java/profile?symbol=IRVE2
&pull 20q v4.662 20091102: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://plants.usda.gov/java/profile?symbol=IRVE2

Following modified from Flora of North America
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Link to Flora of North America home
 
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FNA Vol. 26 Page 374, 388, 390 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 26 | Iridaceae | Iris

26. Iris versicolor Linnaeus, Sp. Pl. 1: 39. 1753.

Blue flag, iris versicolore

Rhizomes pale pinkish white, freely branching, forming large clumps, 1—2.5 cm diam., clothed with remnants of old leaves; roots fleshy. Stems 1—2-branched, solid, 2—6 dm. Leaves: basal with blade green to grayish green, often purplish basally, centrally thickened in mature leaves, prominently veined, narrowly ensiform, 1—8 dm × 1—3 cm; cauline 1—2, blade linear-lanceolate, seldom equaling stem. Inflorescences compact, units 2—4-flowered; spathes never foliaceous, 3—6 cm, unequal, outer shorter than inner, thickly chartaceous to scarious, margins shiny, darker in color. Flowers: perianth violet-blue to rarely white; floral tube funnelform, constricted above ovary, 1—1.2 cm; sepals ovate to reniform, 4—7.2 × 1.8—4 cm, base abruptly attenuate, signal a pubescent, greenish or greenish yellow patch surrounded by heavily veined purple on white at base of blade; petals lanceolate to oblong-lanceolate, 2—5 × 0.5—2 cm, much shorter than sepals, firm, apex rarely emarginate; ovary rounded-triangular in cross section, somewhat inflated, 0.8—2 cm; style 3—3.5 cm, base not auriculate, margins entire or toothed, crests reflexed, 0.7—1.5 cm; stigmas unlobed, triangular or rounded-triangular, margins entire; pedicel 2—8 cm, frequently exceeding spathe. Capsules often persistent over winter, ovoid to oblong-ellipsoid, conspicuously beaked, obtusely triangular in cross section, 1.5—6 cm, tardily dehiscent. Seeds dark brown, D-shaped, 5—8 mm, shiny, thin, hard, regularly pebbled, not corky. 2n = 108.

Flowering May--Jul. Marshy places, along roadsides, shores, and along mountains; Man., N.B., Nfld. and Labr., N.S., Ont., P.E.I., Que.; Conn., Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., Ohio, Pa., R.I., Vt., Va., Wis.

E. Anderson (1936) showed rather conclusively that Iris versicolor arose as an amphidiploid between I. virginica (n = 35) and I. hookeri (I. setosa var. canadensis) (n = 19). Back-cross hybrids have been produced both ways: I. virginica × I. versicolor producing Iris ×robusta E. S. Anderson, and I. versicolor × I. hookeri producing I. ×sancti-cyri J. Rousseau.

Iris versicolor is becoming a weed in New Brunswick, Prince Edward Island, and Nova Scotia. Livestock will not eat iris foliage, but feed voraciously on the competition, thus giving the irises plenty of room to expand.

Following modified from CalPhotos
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CalPhotos     Photo Database

 

Number of matches : 20
Query: SELECT * FROM img WHERE ready=1 and taxon like "Iris versicolor%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Iris versicolor
Iris versicolor
ID: 0000 0000 0306 1471 [detail]
© 2006 Louis-M. Landry

Iris versicolor
Iris versicolor
ID: 0000 0000 0506 2191 [detail]
© 2006 Louis-M. Landry

Iris versicolor
Iris versicolor
Blue-flag Iris
ID: 0000 0000 0607 1186 [detail]
© 2007 Matt Below

Iris versicolor
Iris versicolor
Blue-flag Iris
ID: 0000 0000 0607 1187 [detail]
© 2007 Matt Below

Iris versicolor
Iris versicolor
Blue Flag
ID: 0000 0000 0707 0459 [detail]
© 2007 John Pelafigue

Iris versicolor
Iris versicolor
ID: 0000 0000 0408 1904 [detail]
© 2008 Louis-M. Landry

Iris versicolor
Iris versicolor
ID: 0000 0000 0408 1905 [detail]
© 2008 Louis-M. Landry

Iris versicolor
Iris versicolor
ID: 0000 0000 0510 2557 [detail]
© 2010 Louis-M. Landry

Iris versicolor
Iris versicolor
ID: 0000 0000 0510 2558 [detail]
© 2010 Louis-M. Landry

Iris versicolor
Iris versicolor
ID: 0000 0000 0510 2559 [detail]
© 2010 Louis-M. Landry

Iris versicolor
Iris versicolor
ID: 0000 0000 0510 2560 [detail]
© 2010 Louis-M. Landry

Iris versicolor
Iris versicolor
ID: 0000 0000 0510 2561 [detail]
© 2010 Louis-M. Landry

Iris versicolor
Iris versicolor
ID: 0000 0000 0510 2562 [detail]
© 2010 Louis-M. Landry

Iris versicolor
Iris versicolor
Blue Flag
ID: 0000 1111 1234 4565 [detail]
© 2016 Keir Morse

Iris versicolor
Iris versicolor
Blue Flag
ID: 0000 1111 1234 4566 [detail]
© 2016 Keir Morse

Iris versicolor
Iris versicolor
Blue Flag
ID: 0000 1111 1234 4567 [detail]
© 2016 Keir Morse

Iris versicolor
Iris versicolor
Blue Flag
ID: 0000 1111 1234 4568 [detail]
© 2016 Keir Morse

Iris versicolor
Iris versicolor
Blue Flag
ID: 0000 1111 1234 4569 [detail]
© 2016 Keir Morse

Iris versicolor
Iris versicolor
Blue Flag
ID: 0000 1111 1234 4570 [detail]
© 2016 Keir Morse

Iris versicolor
Iris versicolor
Blue Flag
ID: 0000 1111 1234 4571 [detail]
© 2016 Keir Morse

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


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Updated: 2017-09-22 17:20:06 gmt
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