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Creeping Thistle


Creeping Thistle
Photo Information
Copyright: Catherine Dijon (CatherineD) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 425 W: 15 N: 1845] (6667)
Genre: Plants
Medium: Color
Date Taken: 2008-08-15
Categories: Flowers
Camera: Canon EOS400D, Canon EF 100 mm F2.8 Macro USM
Exposure: f/7.1, 1/200 seconds
Details: Tripod: Yes
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2008-08-21 12:52
Viewed: 780
Points: 16
[Note Guidelines] Photographer's Note
The Creeping Thistle or Cursed Thistle (Cirsium arvense) is a species of Cirsium (family Asteraceae), native throughout Europe and northern Asia, and widely introduced elsewhere.
It is a tall herbaceous perennial plant, forming extensive clonal colonies from an underground root system that sends up numerous erect stems each spring, reaching 1–1.2 m tall (occasionally more); the stems often lie partly flat by summer but can stay erect if supported by other vegetation. The leaves are very spiny, lobed, up to 15–20 cm long and 2–3 cm broad (smaller on the upper part of the flower stem). The inflorescence is 10–22 mm diameter, pink-purple, with all the florets of similar form (no division into disc and ray florets). The flowers are usually dioecious, but not invariably so, with some plants bearing hermaphrodite flowers. The seeds are 4–5 mm long, with a feathery pappus which assists in wind dispersal.
The seeds are an important food for Goldfinch and Linnet, and to a lesser extent for other finches. Creeping Thistle foliage is used as a food by over 20 species of Lepidoptera, including the Painted Lady butterfly and the Engrailed, a species of moth, and several species of aphids.
The species is widely considered a weed even where it is native, for example being designated an "injurious weed" in the United Kingdom under the Weeds Act 1959. It is also a serious invasive species in many additional regions where it has been introduced, usually accidentally as a contaminant in cereal crop seeds (Australia, Brazil, Canada, New Zealand, and the United States). (Wikipedia)
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Le Cirse des champs (Cirsium arvense) est une plante bisannuelle ou vivace appartenant au genre Cirsium et à la famille des Astéracées (ou Composées).
Très commun dans toute l'Europe, c'est une plante nitrophile, adventice de la plupart des cultures, se multipliant rapidement par ses stolons.
On le reconnaît entre autres à ses capitules lilas de petite taille (10 à 22 mm de diamètre) dont les fleurons s'épanouissent largement. Les tiges sont rougeâtres, anguleuses et non ailées. Les graines constituent une nourriture pour les chardonnerets et les linottes ainsi que pour les pinsons. Les feuilles sont consommées par une vingtaine de lépidoptères.
Ce cirse est considéré comme une plante invasive dans plusieurs pays, y compris en Europe d’où il est originaire (ex en Grande-Bretagne) et dans les régions où il a été introduit de manière accidentelle dans les semences de céréales (Australie, Brésil, Canada, Nouvelle Zélande, Etats-Unis).
techranger, nglen, crs, Pitoncle, anel has marked this note useful
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Critiques [Translate]

Excellent shot showing both seed and flower. Excellent focus, lighting, and detail on a neutral background... well done. TFS

Larry

  • Great 
  • nglen Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2908 W: 34 N: 8625] (32146)
  • [2008-08-21 13:29]

Hi cathereine. I have been looking at your close up work and its first class. this is a excellent picture with such sharp focusing and fine detail , with rich colours. i do like the plain green BG. very well done TFS.
Nick..

Hi Catherine,
Excellent capture of this Cursed Thistle with good POV and composition, nice DOF, sharp details and bright natural colours.
TFS
Pekka

  • Great 
  • crs Gold Star Critiquer/Gold Note Writer [C: 523 W: 0 N: 920] (3543)
  • [2008-08-21 23:29]

Hi Catherine,

This is a nice photo of the flower with excelent sharp details and nice color rendering. I like the background that have good colors and makes a nice contrast with the main subject.

Thank you for sharing,
Cristian

  • Great 
  • pvs Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1168 W: 261 N: 3035] (13835)
  • [2008-08-21 23:48]

Hi Catherine,

Mayybe a common subject for the most of us,but you managed to compose it in a perfect way,good light,sharpness,colors and presented against a nice green oof BG

tfs
Paul

  • Great 
  • Ishi Gold Star Critiquer/Gold Note Writer [C: 162 W: 0 N: 973] (3718)
  • [2008-08-22 4:15]

Hi Catherine,

Lovely composition, color, and sahrpness.

It is found in Israel, but is not common, and is not considered a weed.

TFS,

Ishi

Bonjour Catherine,
Superbe publication, bien composée, finement détaillée et délicatement colorée avec une bonne opposition sur l'arrière plan et qui a l'avantage de présenter différents stades de la floraison.
A bientôt sur TN pour de nouvelles avantures.
Gérard

  • Great 
  • anel Gold Star Critiquer/Gold Note Writer [C: 1723 W: 0 N: 3915] (15730)
  • [2008-08-22 5:00]

Bonjour Catherine,
Image très fine et raffinée de ces Cirses des champs qui sont d'une subtile beauté et que tu présentes si bien avec un arière-plan adéquat qui met en valeur la plante. Ces fleurs je les connais bien (j'en ai près de mon chalet) en général les insectes s'y trouvent en grand nombre.
Un grand merci
Anne

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