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Toothed Spurge

Euphorbia dentata Michx.

Description

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Herbs, annual, 20-50 cm tall, Root fibrous, 7-10 cm × 2-3 mm thick. Stems single, many branched above base, 2-5 mm thick, minutely pubescent and sparsely setose. Lower leaves opposite; stipules minute, caducous; petiole 0.3-2 cm, minutely puberulent; leaf blade linear to ovate, 2-7 × 0.5-2 cm, adaxial surface often with purplish spot, both surfaces coarsely pilose on veins or glabrous, base attenuate, margin entire, repand-toothed, or shallowly lobed, very variable, with narrow marginal vein, apex acute or obtuse. Inflorescence terminal, cyathia in whorl of 2 or 3 congested 1-sided cymes; lower involucral leaves 2 or 3, similar to normal leaves; primary rays 2-4 cm; upper involucral leaves few, reduced. Cyathium stipe 1-4 mm; involucre campanulate, ca. 3 × 2 mm, lobes 5, triangular, lacerate; gland 1, lateral on margin of cup, light yellow-brown, cup-shaped, ca. 1.2 mm in diam. Male flowers many, exserted from involucre; anthers yellow. Female flower: ovary globose, glabrous; styles free; style arms 2-lobed. Fruiting pedicel short, as long as cup; capsule compressed globose, ca. 4 × 4-5 mm, glabrous. Seed ovoid-globose, ca. 2 × 1.5-2 mm, gray to almost black, papillate-tuberculate, adaxially black grooved; caruncle small, peltate, yellow, sessile. Fl. and fr. Jul-Oct. 2n = 28*.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 11: 290, 298 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of China @ eFloras.org
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Wu Zhengyi, Peter H. Raven & Hong Deyuan
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Habitat & Distribution

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Naturalized recently in grasslands in the Beijing Botanical Garden [native to North America].
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 11: 290, 298 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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eFloras

Synonym

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Euphorbia purpureomaculata T. J. Feng & J. X. Huang.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 11: 290, 298 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
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eFloras

Euphorbia dentata ( Azerbaijani )

provided by wikipedia AZ


Euphorbia dentata (lat. Euphorbia dentata) - südləyənkimilər fəsiləsinin südləyən cinsinə aid bitki növü.

Mənbə


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Euphorbia dentata: Brief Summary ( Azerbaijani )

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Euphorbia dentata (lat. Euphorbia dentata) - südləyənkimilər fəsiləsinin südləyən cinsinə aid bitki növü.

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Euphorbia dentata

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Euphorbia dentata is a species of spurge known by the common names toothed spurge and green poinsettia. It is native to parts of North and South America, and is present elsewhere on the continents. Its true native range is uncertain. It is a noxious weed in some areas. This is a hairy annual herb with an erect or somewhat erect stem reaching anywhere from 20 to 50 centimeters tall. Its hairy, pointed leaves are a few centimeters long, widely to narrowly lance-shaped, and generally toothed. The inflorescence appears at the end of branches and contain cream or yellowish staminate or pistillate flowers just a few millimeters wide. The fruit is a lobed spherical or heart-shaped capsule about half a centimeter wide which contains three bumpy rounded seeds.

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wikipedia EN

Euphorbia dentata: Brief Summary

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Euphorbia dentata is a species of spurge known by the common names toothed spurge and green poinsettia. It is native to parts of North and South America, and is present elsewhere on the continents. Its true native range is uncertain. It is a noxious weed in some areas. This is a hairy annual herb with an erect or somewhat erect stem reaching anywhere from 20 to 50 centimeters tall. Its hairy, pointed leaves are a few centimeters long, widely to narrowly lance-shaped, and generally toothed. The inflorescence appears at the end of branches and contain cream or yellowish staminate or pistillate flowers just a few millimeters wide. The fruit is a lobed spherical or heart-shaped capsule about half a centimeter wide which contains three bumpy rounded seeds.

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Euphorbia dentata ( Spanish; Castilian )

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Euphorbia dentata Michx., es una especie fanerógama perteneciente a la familia Euphorbiaceae.

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Detalle del ciatio
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Hojas

Distribución

Es nativo de partes de Norteamérica y Sudamérica, y está presente en otros lugares en los continentes. Se trata de una maleza nociva en algunas zonas.

Descripción

Esta es una hierba anual peludo con un tallo erecto que alcanza de 20 a 50 centímetros de altura. Sus hojas globosas son de unos centímetros de largo, en forma de lanza, y, en general, dentadas. La inflorescencia aparece al final de las ramas y contienen estambres de color crema o amarillento, las flores de pocos milímetros de ancho. El fruto es una cápsula en forma de lóbulo esférico o en forma de corazón de alrededor de medio centímetro de ancho que contiene semillas redondeadas.

Taxonomía

Euphorbia dentata fue descrita por André Michaux y publicado en Flora Boreali-Americana 2: 211. 1803.[1]

Etimología

Euphorbia: nombre genérico que deriva del médico griego del rey Juba II de Mauritania (52 a 50 a. C. - 23), Euphorbus, en su honor – o en alusión a su gran vientre – ya que usaba médicamente Euphorbia resinifera. En 1753 Carlos Linneo asignó el nombre a todo el género.[2]

dentata: epíteto latino que significa "con dientes".[3]

Sinonimia
  • Anisophyllum dentatum (Michx.) Haw.
  • Euphorbia aureocincta Croizat
  • Euphorbia cuphosperma (Engelm.) Boiss.
  • Euphorbia dentata forma cuphosperma (Engelm.) Fernald
  • Euphorbia dentata var. cuphosperma Engelm.
  • Euphorbia dentata var. lancifolia Farw.
  • Euphorbia dentata var. lasiocarpa Boiss.
  • Euphorbia dentata var. linearis Engelm. ex Boiss.
  • Euphorbia dentata var. rigida Engelm.
  • Euphorbia fontanesii Steud.
  • Euphorbia herronii Riddell
  • Euphorbia purpureomaculata T.J.Feng & J.X.Huang
  • Poinsettia cuphosperma (Engelm.) Small
  • Poinsettia dentata (Michx.) Klotzsch & Garcke
  • Poinsettia schiedeana Klotzsch & Garcke[4][5][6]

Referencias

  1. «Euphorbia dentata». Tropicos.org. Missouri Botanical Garden. Consultado el 3 de julio de 2012.
  2. (Spec. Pl. [ed. 1]: 450)
  3. En Epítetos Botánicos
  4. Sinónimos en Catalogue of life [1]
  5. Euphorbia dentata en PlantList
  6. «Euphorbia dentata». World Checklist of Selected Plant Families Real Jardín Botánico de Kew.

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Euphorbia dentata: Brief Summary ( Spanish; Castilian )

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Euphorbia dentata Michx., es una especie fanerógama perteneciente a la familia Euphorbiaceae.

 src= Detalle del ciatio  src= Hojas
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Euphorbia dentata ( Vietnamese )

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Euphorbia dentata là một loài thực vật có hoa trong họ Đại kích. Loài này được Michx. mô tả khoa học đầu tiên năm 1803.[1]

Hình ảnh

Chú thích

  1. ^ The Plant List (2010). Euphorbia dentata. Truy cập ngày 3 tháng 6 năm 2013.

Liên kết ngoài

 src= Phương tiện liên quan tới Euphorbia dentata tại Wikimedia Commons


Hình tượng sơ khai Bài viết về tông Đại kích 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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Euphorbia dentata: Brief Summary ( Vietnamese )

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Euphorbia dentata là một loài thực vật có hoa trong họ Đại kích. Loài này được Michx. mô tả khoa học đầu tiên năm 1803.

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齿裂大戟 ( Chinese )

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二名法 Euphorbia dentata
Michx.

齿裂大戟学名Euphorbia dentata)是大戟科大戟属的植物。分布在北美以及中国大陆北京等地,多生长在杂草丛、路旁和沟边,目前已由人工引种栽培。

别名

紫斑大戟(植物研究)

参考文献

  • 昆明植物研究所. 齿裂大戟. 《中国高等植物数据库全库》. 中国科学院微生物研究所. [2009-02-25]. (原始内容存档于2016-03-05).
小作品圖示这是一篇與植物相關的小作品。你可以通过编辑或修订扩充其内容。
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齿裂大戟: Brief Summary ( Chinese )

provided by wikipedia 中文维基百科

齿裂大戟(学名:Euphorbia dentata)是大戟科大戟属的植物。分布在北美以及中国大陆北京等地,多生长在杂草丛、路旁和沟边,目前已由人工引种栽培。

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