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Comments ( Anglèis )

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R. C. Foster (1937) named several varieties of Iris douglasiana, about which L. W. Lenz (1954) said, “This is a widespread and extremely variable species whose total variability is being increased due to introgressive hybridization between it and other species with which it has come into contact. Well marked and distinct geographic races cannot be detected; however, pronounced variations are to be found within a single population. For these reasons no attempt is made here to segregate taxa within such a polymorphic species.”

Iris douglasiana hybridizes with I. bracteata, I. chrysophylla, I. fernaldii, I. hartwegii, I. innominata, I. macrosiphon, I. munzii, I. purdyi, I. tenax, and I. tenuissima. The natural hybrid between I. douglasiana and I. innominata has been designated as Iris ×thompsonii R. C. Foster and the garden hybrid as Iris ×aureonympha E. H. English.

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Flora of North America Vol. 26: 374, 381, 382, 384, 385, 386, 387 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description ( Anglèis )

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Rhizomes freely branching, forming large colonies, slender, 0.8–0.9 cm diam., covered with remains of old leaves; roots fibrous. Stems 1–4-branched, solid, 1.5–7 dm. Leaves: basal with blade yellow-green, occasionally darker green, sometimes flushed pink or red basally, prominently ribbed, linear, 4.5–10 dm × 2 cm, apex acute; cauline 1–3, reduced. Inflorescence units (2–)3-flowered, branch units 2–3-flowered; spathes opposite or separated, divergent, green, sometimes flushed purple basally, lanceolate-acuminate, 6–12 cm × 7–12 mm. Flowers: perianth deep red-purple, lavender, gray-blue, cream, or white, with gold signal and blue or purple veins; floral tube 1.5–2.8 cm, usually widening to bowl shape at base of flower; sepals oblanceolate to obovate, 5–9 × 1.4–3 cm, base gradually attenuate, apex obtusely rounded; petals oblanceolate, 4.5–7 × 0.9–1.8 cm, base attenuate to narrow claw; ovary elliptic-oval, sharply triangular in cross section, 3–4 cm; style 1.7–3.5 cm; crests overlapping, subquadrate, 1–2 cm, margins coarsely toothed; stigmas triangular; pedicel 2–5 cm. Capsules sharply triangular in cross section with ridge at each angle, tapering at both ends, remnant of floral tube forming tip at apex, 2.5–5 cm. Seeds dark brown, pyriform, wrinkled. 2n = 40.
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Flora of North America Vol. 26: 374, 381, 382, 384, 385, 386, 387 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Habitat & Distribution ( Anglèis )

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Flowering Apr--Jun. Open woods, sunny slopes and fields; Calif., Oreg.
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Flora of North America Vol. 26: 374, 381, 382, 384, 385, 386, 387 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Synonym ( Anglèis )

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Iris beecheyana Herbert; I. douglasiana var. alpha Dykes; I. douglasiana var. altissima Purdy ex Jepson; I. douglasiana var. beecheyana (Herbert) Baker; I. douglasiana var. bracteata Herbert; I. douglasiana var. major Torrey; I. douglasiana var. mendocinensis Eastwood; I. douglasiana var. nuda Herbert; I. douglasiana var. oregonensis R. C. Foster; I. watsoniana Purdy
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Flora of North America Vol. 26: 374, 381, 382, 384, 385, 386, 387 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Iris douglasiana ( Aser )

fornì da wikipedia AZ


Iris douglasiana (lat. Iris douglasiana) - süsənkimilər fəsiləsinin süsən cinsinə aid bitki növü.

Mənbə


Dahlia redoute.JPG Bitki ilə əlaqədar bu məqalə qaralama halındadır. Məqaləni redaktə edərək Vikipediyanı zənginləşdirin. Etdiyiniz redaktələri mənbə və istinadlarla əsaslandırmağı unutmayın.
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Iris douglasiana: Brief Summary ( Aser )

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Iris douglasiana (lat. Iris douglasiana) - süsənkimilər fəsiləsinin süsən cinsinə aid bitki növü.

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Iris douglasiana ( Anglèis )

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Closeup of flower

Iris douglasiana, the Douglas iris, is a common wildflower of the coastal regions of Northern and Central California and southern Oregon in the United States.[2] It grows mainly at lower elevations, below 100 meters (330 ft), though it is occasionally found at heights of up to 1,000 meters (3,300 ft). It is most common in grasslands near the coast.

Consumption may cause severe discomfort.[3]

This is a typical beardless iris of subgenus Limniris, series Californicae, growing from a rhizome that is typically less than a centimeter in diameter. Its leaves are about 2 centimeters (0.79 in) wide. The flowers, appearing from April to June, are usually a purplish-blue, though occasionally white or yellow flowers are found. Two or three flowers are found on each stem, which is of variable height, ranging from 15–80 centimeters (5.9–31.5 in) tall.

Taxonomy

It was first described by 19th century botanist David Douglas in Monterey, California.

It was first published by the british botanist William Herbert in 'Bot. Beechey Voy.' 9 on page 395 in 1840.[1]

Several varieties have been recognized, for example Iris douglasiana var. altissima (Jeps.) and Iris douglasiana var. oregonensis (R. C. Foster), but the species is highly variable and the varieties may not be well enough defined to be of much practical use. The Douglas iris hybridizes freely with several other species; its natural hybrid with I. innominata has been designated as Iris ×thompsonii (R. C. Foster), and the garden hybrid with the same species as Iris ×aureonympha (E. H. English).

This plant has gained the Royal Horticultural Society's Award of Garden Merit.[3]

References

  1. ^ a b "Iris douglasiana Herb. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 7 July 2021.
  2. ^ USDA, NRCS (n.d.). "Iris douglasiana". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 20 November 2019.
  3. ^ a b "Iris douglasiana". Royal Horticultural Society. Retrieved 23 July 2013.

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Iris douglasiana: Brief Summary ( Anglèis )

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Closeup of flower

Iris douglasiana, the Douglas iris, is a common wildflower of the coastal regions of Northern and Central California and southern Oregon in the United States. It grows mainly at lower elevations, below 100 meters (330 ft), though it is occasionally found at heights of up to 1,000 meters (3,300 ft). It is most common in grasslands near the coast.

Consumption may cause severe discomfort.

This is a typical beardless iris of subgenus Limniris, series Californicae, growing from a rhizome that is typically less than a centimeter in diameter. Its leaves are about 2 centimeters (0.79 in) wide. The flowers, appearing from April to June, are usually a purplish-blue, though occasionally white or yellow flowers are found. Two or three flowers are found on each stem, which is of variable height, ranging from 15–80 centimeters (5.9–31.5 in) tall.

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Iris douglasiana ( Spagneul; Castilian )

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Iris douglasiana (iris de Douglas) es una flor silvestre común en las regiones costeras del norte y centro de California y sur de Oregon en los Estados Unidos. [2]​ Fue descripta por primera vez en el siglo XIX por el botánico David Douglas en Monterrey. Crece principalmente a baja altitud, por debajo de los 100 metros, aunque ocasionalmente puede hallarse en sitios de hasta 1000 metros de altitud. Es muy común en la pradera costera de California; se la considera una hierba nociva en los pastizales, porque forma grupos que inhiben otra vegetación, y sus hojas son amargas y desagradables para el ganado.

 src=
Flor en primer plano

Existe un Iris del subgénero Limniris, que crece de un rizoma de menos de un centímetro de diámetro. Sus hojas tienen aproximadamente 2 centímetros de ancho. Florece de abril a junio, y sus flores habitualmente son azul púrpura, aunque algunas veces se encuentran flores amarillas. Cada tallo, de 15 a 80 cm. de alto tiene dos o tres flores.

Se han reconocido muchas variedades, por ejemplo Iris douglasiana var. altissima (Jeps.) and Iris douglasiana var. oregonensis (R. C. Foster), pero la especie es muy variable, y muchas dee estas variedades no pueden ser definidas con precisión en la práctica. El iris de Douglas se hibrida libremente con varias otras especies; su híbrido natural I. innominata, fue descripto como Iris ×thompsonii (R. C. Foster),, y los híbridos de jardín similares se denominan Iris ×aureonympha (E. H. English).

Esta planta ha recibido el Award of Garden Merit de la Real Sociedad de Horticultura. [3]

Referencias

  1. theplantlist.org (The Plant List), ed. (23 de marzo de 2013). «Iris douglasiana Herb. is an accepted name». Consultado el 1 de abril de 2020.
  2. «Iris douglasiana Herb.». Natural Resources Conservation Service (en inglés). Consultado el 1 de abril de 2020.
  3. Royal Horticultural Society (ed.). «Iris douglasiana». Consultado el 1 de abril de 2020.

 title=
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Iris douglasiana: Brief Summary ( Spagneul; Castilian )

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Iris douglasiana (iris de Douglas) es una flor silvestre común en las regiones costeras del norte y centro de California y sur de Oregon en los Estados Unidos. ​ Fue descripta por primera vez en el siglo XIX por el botánico David Douglas en Monterrey. Crece principalmente a baja altitud, por debajo de los 100 metros, aunque ocasionalmente puede hallarse en sitios de hasta 1000 metros de altitud. Es muy común en la pradera costera de California; se la considera una hierba nociva en los pastizales, porque forma grupos que inhiben otra vegetación, y sus hojas son amargas y desagradables para el ganado.

 src= Flor en primer plano

Existe un Iris del subgénero Limniris, que crece de un rizoma de menos de un centímetro de diámetro. Sus hojas tienen aproximadamente 2 centímetros de ancho. Florece de abril a junio, y sus flores habitualmente son azul púrpura, aunque algunas veces se encuentran flores amarillas. Cada tallo, de 15 a 80 cm. de alto tiene dos o tres flores.

Se han reconocido muchas variedades, por ejemplo Iris douglasiana var. altissima (Jeps.) and Iris douglasiana var. oregonensis (R. C. Foster), pero la especie es muy variable, y muchas dee estas variedades no pueden ser definidas con precisión en la práctica. El iris de Douglas se hibrida libremente con varias otras especies; su híbrido natural I. innominata, fue descripto como Iris ×thompsonii (R. C. Foster),, y los híbridos de jardín similares se denominan Iris ×aureonympha (E. H. English).

Esta planta ha recibido el Award of Garden Merit de la Real Sociedad de Horticultura. ​

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Douglasiris ( svedèis )

fornì da wikipedia SV

Douglasiris (Iris douglasiana) är en växtart inom familjen irisväxter från västra USA. Arten kan odlas som prydnadsväxt i Sverige.

Synonymer

[1]

  • Iris beecheyana Herb.
  • Iris douglasiana f. alpha (Dykes) R.C.Foster
  • Iris douglasiana var. alpha Dykes
  • Iris douglasiana var. altissima Purdy ex Jeps.
  • Iris douglasiana var. beecheyana (Herb.) Baker
  • Iris douglasiana var. bracteata Herb.
  • Iris douglasiana var. major Torr.
  • Iris douglasiana var. mendocinensis Eastw.
  • Iris douglasiana var. nuda Herb.
  • Iris douglasiana var. oregonensis R.C.Foster
  • Iris watsoniana Purdy

Referenser

Noter

  1. ^ Wikispecies

Webbkällor

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Douglasiris: Brief Summary ( svedèis )

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Douglasiris (Iris douglasiana) är en växtart inom familjen irisväxter från västra USA. Arten kan odlas som prydnadsväxt i Sverige.

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Iris douglasiana ( vietnamèis )

fornì da wikipedia VI

Iris douglasiana là một loài thực vật có hoa trong họ Diên vĩ. Loài này được Herb. miêu tả khoa học đầu tiên năm 1840.[1]

Chú thích

  1. ^ The Plant List (2010). Iris douglasiana. Truy cập ngày 25 tháng 6 năm 2013.

Liên kết ngoài


Bài viết liên quan đến phân họ diên vĩ Iridoideae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Iris douglasiana: Brief Summary ( vietnamèis )

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Iris douglasiana là một loài thực vật có hoa trong họ Diên vĩ. Loài này được Herb. miêu tả khoa học đầu tiên năm 1840.

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