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■ (SPEC) Iris douglasiana Herb.

1841, Herbert

Iris douglasiana Herbert ( Rev. George Herbert, 1841, Coastal California); CA (Series Californicae); 6-28" (15-70 cm); Extremely variable in size of plants and color of flowers; Flowers shades of purple, lavender or white; veined darker; yellow signal; Perianth tube of medium length (3/4 ") and spathes open or closed. I. douglasiana can be distinguished by its ovary and capsule; oblong , tapering at each end, with a nipple-like projection at the top and sharply triangular in cross-section;

See below:
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BA-I-DOUGLASIANA PCNSC.jpgBA-I-DOUGLASIANA PCNSCcrppd.jpgdouglas01.jpgdouglas02.jpgdouglasiana1.JPGdouglasiana2.JPGdouglasiana3.JPGdouglasiana4.JPGdouglasiana40.JPGdouglasiana5.JPGdouglasiana6.JPGdouglasiana7.JPGdouglasiana9.jpegdouglasiana90.jpegdouglasiana edited-3.jpgdouglasiani12.jpgdouglasiani13.jpgIdouglasiana01.jpgIdouglasiana02.jpgIdouglasiana03.jpgIris douglasiana-13.jpgIris douglasiana-15a.jpgIris douglasiana-16a.jpgIris douglasiana-18a.jpgIris douglasiana-20a.jpgIris doulasiana M C.jpgIrisdouglasiana01.jpgIrisdouglasiana02.jpgIrisdouglasiana03.jpgIrisdouglasiana04.jpgIrisdouglasiana05.jpgIrisdouglasiana07.jpgIrisdouglasiana08.jpgIrisdouglasiana09.jpgIrisdouglasiana2.jpgIrisdouglasiana3.jpgSIGNA 09PC122 douglasiana enlarged.jpgSIGNA 09PC122 douglasiana resized.jpgThe GardenDouglasiana.jpg
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References:

Hooker & Arnott, Bot. Voy. Beech. 395. 1841;
Curtis's Botanical Magazine tab. 6083. 1874,
Wal. 1916; Per. 1938;
Van T. 1900;
Dykes, The Genus Iris 36. tab. 8. 1913,
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Synonyms

Iris amabilis Eastwood; Iris beechiana Herb.; Iris humilis Beechy. ----

Chromosome number:

2n=40, Sim. 1934, ex Randolph & Mitra, Bulletin of the American Iris Society 140: 58. 1956. 2n=40, Lenz, 1956. ----

Variations

Iris douglasiana
  • var. mendocinensis Eastwood in Leaflets
  • var. oregonensis R. C. Foster.

Iris douglasiana cultivars:
  • 'Agnes James' 'Amelia Bloomer', 'Amiguita', 'Banbury Fair', 'Banbury Sensation', 'Banbury Song' 'Blue Orphan' 'Bob's Beet-Root', 'Bob's Big Boy', 'California Bella', 'California Blanco', 'California Fairy', 'California Gracia', 'California Stalwart', 'California Star', 'California Winter' 'Cape Sebastian', 'Carole Cabeen', 'Cinderella's Slipper', 'Come Spring', 'Day In June', 'Dewy Moon', 'Douglasiana Alba', 'Douglasiana Alpha', 'Douglasiana Gladys', 'Douglasiana Mauve Queen' 'Douglasiana Rosea' 'Eco Snowy Owl', 'Eleven Thirty', 'Estrelita', 'Fairy Blue', 'Fawn Ruffles', 'Ficus', 'Gold Nimbus', 'Greenbriar Spring', 'Harland Hand', 'Ivory Maiden', 'Kittee', 'Lively Lady', 'Mendochino Banner', 'Merton', 'Mini-Ma', 'Morning Fairy', 'Ojai', 'Olompali' 'Ophir' 'Orchid Bright', 'Orpheus', 'Pacific Gleam', 'Parisian Doll' 'Pegasus', 'Pride Of California' 'Pt. Reyes Blue' 'Purple Velvet', 'Santiam Snow' 'Smoke Rose', 'Sunstruck', 'Watsoniana', 'Yellow Opal'.

Hybrids

Iris douglasiana crosses
  • Iris douglasiana X Iris bracteata: 'Alex Back', 'Dougbract', 'Watbract'.
  • Iris douglasiana X PCN : 'Ami Royale', 'Augie', 'Brett', 'David Mark Ward', 'Miwok', 'Native Warrior', 'Pacific Charmer', 'Patrea', 'Quintana', 'SusieKnapp', 'White Angel'.
  • PCN X Iris douglasiana: 'Arioso', 'Blackeyed Susan', 'No Name'.
  • Iris douglasiana and unknown PCN : 'Mendocino Blush'.
  • Iris douglasiana X Iris innominata: 'Banbury Butterfly', 'Banbury Pageant', 'Branciforte', 'California Princess', 'Claret', 'Fine Feathers', 'Gold Angel', 'Golden Nymph', 'Grace McFarland', 'Greenbriar Shadows', 'Lavender Lilt', 'Mesa Queen', 'Pacific Lavender', 'Poached Egg', 'Smoky Wine', 'Snowflake'.
  • Iris innominata X Iris douglasiana: 'Arlington Royal Peach', 'Armida', 'Banbury Melody', 'Blue Serenade', 'Elfin Motley', 'Elfin Prince', 'Fairy Child', 'Fairy Cloak', 'Fairy Fay', 'Fairy Flight', 'Goblin Gold', 'Jemmy O'Goblin', 'Lemonade Springs', 'Leprechaun', 'Mystic Rose', 'Pacific Rose', 'Ruffled Princess', 'Sugar Candy', 'Sundown Yosemite', 'Sunset Dale', 'Tranquil Dale', 'Twinkalino', 'Vecta', 'Veined Mystery', 'West Coast Delight'.
  • Iris munzii X Iris douglasiana: 'Alma Abell', 'Bob's Blue Boy', 'Rio Tulare', 'Rustic Canyon'.
  • Iris douglasiana and Iris purdyi: 'Mendocino Morn'.
  • Iris douglasiana X Iris tenax: 'Dougtenax'.
  • Iris tenax X Iris douglasiana: 'Tewat'.

Iris douglasiana and Series Longipetala
  • Iris missouriensis X Iris douglasiana: 'Monwat'.
  • Iris longipetala X Iris douglasiana: 'Longwat'.

Iris douglasiana and Series Ensata
  • Iris douglasiana X Iris lactea: 'Calsata hybrids', 'Hamadryad'.

Cal-Sibes;
  • Iris douglasiana X Iris chrysographes: 'Dougraphes'.
  • Iris chrysographes X Iris douglasiana: 'Chrysodoug', 'Margot Holmes'.
  • Iris douglasiana X Iris clarkei: 'Far Voyager'.
  • Iris douglasiana X Sino-Siberian: ‘Fair Colleen', 'Swirling Mist'.
  • Iris douglasiana X Iris sanguinea: 'Royal Californian'.
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Distribution and Cultivation

Distribution: The distribution of the species gives clues as to its cultural requirements, although plants in cultivation can often tolerate a wider range of variables:
The species is found in the following region: Oregon and California

Bonap's North American Plant Atlas shows the following map reproduced by permission of Kartesz, J.T., The Biota of North America Program (BONAP). 2015. Taxonomic Data Center. (http://www.bonap.net/tdc). Chapel Hill, N.C. [maps generated from Kartesz, J.T. 2015. Floristic Synthesis of North America, Version 1.0. Biota of North America Program (BONAP). (in press)]
Cultivation;
Prefers moist soil, but can be grown in good garden soil, well-drained and flourishes in full sun to part shade.

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-- Main.RPries - 2009-11-25
I Attachment Action Size Date Who Comment
BA-I-DOUGLASIANA_PCNSC.jpgjpg BA-I-DOUGLASIANA_PCNSC.jpg manage 28 K 20 Sep 2010 - 11:42 UnknownUser Lorena Reid photo
BA-I-DOUGLASIANA_PCNSCcrppd.jpgjpg BA-I-DOUGLASIANA_PCNSCcrppd.jpg manage 29 K 20 Sep 2010 - 11:42 UnknownUser Lorena Reid photo
Idouglasiana01.jpgjpg Idouglasiana01.jpg manage 62 K 21 Sep 2014 - 21:41 Main.TLaurin Photo by John Weiler
Idouglasiana02.jpgjpg Idouglasiana02.jpg manage 81 K 21 Sep 2014 - 21:42 Main.TLaurin Photo by John Weiler
Idouglasiana03.jpgjpg Idouglasiana03.jpg manage 77 K 21 Sep 2014 - 21:45 Main.TLaurin Photo by John Weiler
Iris_douglasiana-13.jpgjpg Iris_douglasiana-13.jpg manage 79 K 08 Jun 2011 - 19:48 Main.ksayce Iris_douglasiana
Iris_douglasiana-15a.jpgjpg Iris_douglasiana-15a.jpg manage 78 K 08 Jun 2011 - 19:49 Main.ksayce Iris_douglasiana
Iris_douglasiana-16a.jpgjpg Iris_douglasiana-16a.jpg manage 72 K 08 Jun 2011 - 19:49 Main.ksayce Iris_douglasiana
Iris_douglasiana-18a.jpgjpg Iris_douglasiana-18a.jpg manage 80 K 08 Jun 2011 - 19:50 Main.ksayce Iris_douglasiana
Iris_douglasiana-20a.jpgjpg Iris_douglasiana-20a.jpg manage 82 K 08 Jun 2011 - 19:50 Main.ksayce Iris_douglasiana
Iris_doulasiana_M_C.jpgjpg Iris_doulasiana_M_C.jpg manage 53 K 21 Jul 2010 - 10:05 Main.rivdel Iris douglasiana. Monterey Coast, by Stephanie Boot
Irisdouglasiana01.jpgjpg Irisdouglasiana01.jpg manage 62 K 18 Sep 2014 - 16:18 Main.TLaurin Photo by Adele and Lewis Lawyer
Irisdouglasiana02.jpgjpg Irisdouglasiana02.jpg manage 98 K 18 Sep 2014 - 16:20 Main.TLaurin Photo by Adele and Lewis Lawyer
Irisdouglasiana03.jpgjpg Irisdouglasiana03.jpg manage 64 K 18 Sep 2014 - 16:27 Main.TLaurin Photo by Adele and Lewis Lawyer
Irisdouglasiana04.jpgjpg Irisdouglasiana04.jpg manage 68 K 18 Sep 2014 - 16:29 Main.TLaurin Photo by Adele and Lewis Lawyer
Irisdouglasiana05.jpgjpg Irisdouglasiana05.jpg manage 96 K 18 Sep 2014 - 16:31 Main.TLaurin Photo by Adele and Lewis Lawyer
Irisdouglasiana07.jpgjpg Irisdouglasiana07.jpg manage 64 K 18 Sep 2014 - 16:34 Main.TLaurin Photo by Adele and Lewis Lawyer
Irisdouglasiana08.jpgjpg Irisdouglasiana08.jpg manage 60 K 18 Sep 2014 - 16:37 Main.TLaurin Photo by Adele and Lewis Lawyer
Irisdouglasiana09.jpgjpg Irisdouglasiana09.jpg manage 79 K 18 Sep 2014 - 16:38 Main.TLaurin Photo by Adele and Lewis Lawyer
Irisdouglasiana2.jpgjpg Irisdouglasiana2.jpg manage 67 K 18 Sep 2014 - 16:40 Main.TLaurin Photo by Adele and Lewis Lawyer
Irisdouglasiana3.jpgjpg Irisdouglasiana3.jpg manage 56 K 18 Sep 2014 - 16:42 Main.TLaurin Photo by Adele and Lewis Lawyer
SIGNA_09PC122_douglasiana_enlarged.jpgjpg SIGNA_09PC122_douglasiana_enlarged.jpg manage 49 K 12 Jan 2011 - 17:49 UnknownUser Pries photo
SIGNA_09PC122_douglasiana_resized.jpgjpg SIGNA_09PC122_douglasiana_resized.jpg manage 57 K 12 Jan 2011 - 17:48 UnknownUser Pries photo
douglas01.jpgjpg douglas01.jpg manage 70 K 25 Mar 2015 - 12:08 Main.TLaurin Photo by Matilija Nursery
douglas02.jpgjpg douglas02.jpg manage 62 K 25 Mar 2015 - 12:13 Main.TLaurin Photo by Matilija Nursery
douglasiana_edited-3.jpgjpg douglasiana_edited-3.jpg manage 50 K 30 Nov 2009 - 22:50 UnknownUser Plate from Dykes' Genus Iris
douglasiani12.jpgjpg douglasiani12.jpg manage 87 K 08 Sep 2013 - 21:11 Main.TLaurin Photo by Matilija Nursery
douglasiani13.jpgjpg douglasiani13.jpg manage 97 K 20 Sep 2013 - 00:00 Main.TLaurin Photo by Matilija Nursery
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