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Symmetry


Symmetry
Photo Information
Copyright: Shir Goldberg (shirgold) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 286 W: 105 N: 591] (2748)
Genre: Plants
Medium: Color
Date Taken: 2007-04-06
Categories: Flowers
Camera: Nikon D70, Sigma 150mm F2.8 APO Macro DG HSM
Exposure: f/10.0, 1/400 seconds
Details: Tripod: Yes
More Photo Info: [view]
Map: [view]
Photo Version: Original Version
Date Submitted: 2007-05-20 3:01
Viewed: 4533
Points: 14
[Note Guidelines] Photographer's Note
This beautiful and special looking flower was found on the slopes on Mt. Vesuvius
What attracted me the most is the symmetrical shape and details of the flowers.

I assume is one of the 2160(!) species of the Euphorbia genus.

Note - thanks Maite and Ori for the ID - Euphorbia helioscopica



Purges (Euphorbia) are a very diverse worldwide genus of plants, belonging to the spurge family or Euphorbiaceae. Consisting of about 2160 species spurges are one of the largest genera in plant kingdom.

The latex (milky sap) of spurges acts as a deterrent for herbivores as well as a wound healer. Usually it is white, but in rare cases (e.g. E. abdelkuri ) yellow. As it is under pressure, it runs out from the slightest wound and congeals within a few minutes of contact with the air. Among the component parts are many di- or tri-terpen esters, which can vary in composition according to species and in some cases the variant may be typical of that species. The terpen ester composition determines if the latex is slightly or very caustic and irritating to the skin, and especially if in contact with mucous membranes (eyes, nose, mouth) can produce extremely painful inflammation. In experiments with animals it was found that the terpen ester resiniferatoxin had an irritating effect 10,000 to 100,000 times stronger than capsaicin, the "hot" substance found in chillies. Several terpen esters are also known to be carcinogenic.

Therefore handling spurges needs to be done with caution. Latex coming in contact with the skin should be washed off immediately and thoroughly. Partially or completely congealed latex is often no longer soluble in water, but can be removed with an emulsion (milk, hand-cream). With inflammation of a mucous membrane a doctor needs to be consulted. If cutting large succulent spurges in a greenhouse, it has been noticed that vapours from the latex spread and can cause severe irritation to the eyes and air passages several metres away. Caution is therefore required and for example ensure sufficient ventilation. Small children and domestic pets should never come into contact with spurges.

source: Wikipedia

JORAPAVI, jmp, Maite, ridvan, XOTAELE, jpdenk has marked this note useful
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Critiques [Translate]

Hola Shir,
Bonita simetría conseguida en esta composición de la Euphorbia, la nitidez es excelente y la luminosidad muy agradable. Saludos
José Ramón

  • Great 
  • jmp Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1659 W: 95 N: 2273] (8415)
  • [2007-05-20 5:33]

Hola Shir,
Me encanta la luz de esta foto y su color, que puedo asegurar que conozco bien.:-) Impecable nitidez y una soberbia luz perfectamente medida. Me encantan estas plantas que tanto abundan por aquí.
Saludos, José M.

  • Great 
  • Maite Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 998 W: 65 N: 1270] (5199)
  • [2007-05-20 7:32]

WOW!
What a wonderful picture, Shir!!
What a marvellous POV and composition!
Great sharpness, lighting, DOF...
Really gorgeous!
A magnificent image of Euphorbia helioscopica
Congratulations and thank you very much for sharing it and for the useful information.
Best wishes
Maite

  • Great 
  • ridvan Gold Star Critiquer/Gold Note Writer [C: 498 W: 0 N: 1136] (5205)
  • [2007-05-20 12:25]

selam shir, wow very nice shot of this beatiful flower,good presented , very nice BG and POV, well captured with nice colours and details TFS
regards
ridvan

Unos detalles maravillosos. Perfecta presentación, con una nitidez extraordinaria.
Precioso encuadre y muy buena nota.
Un cordial saludo Shir, JL.

nice pic of Euphorbia helioscopia, dash Ori

Hi Shir,

Another excellent plant shot, very attractive plant, photographed really well, nice composition.

Thanks,
John

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