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Cirsium arvense II


Cirsium arvense II
Photo Information
Copyright: Vanda Golfetto (vanda) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 338 W: 25 N: 754] (3673)
Genre: Plants
Medium: Color
Date Taken: 2011-10-12
Categories: Flowers
Exposure: f/4, 1/400 seconds
Photo Version: Original Version
Date Submitted: 2012-01-24 5:36
Viewed: 2699
Points: 38
[Note Guidelines] Photographer's Note
Il cardo campestre (Cirsium arvense (L.) Scop.) è una pianta appartenente alla famiglia delle Asteraceae, nativa dell'area mediterranea.
Nomi comuni:Stoppione minore,Scardaccione,Spione,Cirsio.
È una pianta erbacea perenne il cui fusto, eretto, solcato longitudinalmente, pubescente, può raggiungere 1-1,5 m di altezza.
I semi del C. arvense sono una importante fonte di cibo per cardellini, fanelli ed altre specie di fringillidi.
Le foglie fungono da nutrimento per le larve di oltre 20 specie di farfalle, tra cui Vanessa cardui e Ectropis crepuscularia, e per numerose specie di afidi
C. arvense, fiorisce durante l'estate, in gruppi di più individui, entrando a far parte di biocenosi di tipo mesofilo, (ad esempio i prati alpini), in cui assume una notevole rilevanza ecologica; le infiorescenze nettarifere delle specie sopra citate, che presentano tutte tonalità solitamente comprese tra il rosa e il viola carico, risultano fortemente attrattive per gli adulti di varie specie di farfalle, tra cui Nymphalidae (p.e. Vanessa spp.), Papilionidae (p.e. Iphiclides spp.) e diverse specie della famiglia Pieridae.
Ad esempio si è notata una predilezione per le infiorescenze di Cirsium arvense da parte degli adulti di Pieris napi, oltre che Pieris brassicae e Pieris mannii. Questa capacità attrattiva (che però non è da ritenersi specie-specifica) può essere spiegata sia con la produzione, da parte della pianta, di oli ed essenze particolarmente appetibili per la farfalla, sia con la peculiare gamma cromatica, che orienta l'insetto durante la ricerca del nettare.



Cirsium arvense is a species of Cirsium, native throughout Europe and northern Asia, and widely introduced elsewhere. The standard English name in its native area is Creeping Thistle.
It is a herbaceous perennial plant growing 30–100 cm, 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).
Stems are green smooth and glabrous (having no Trichome or glaucousness), mostly without spiny wings. 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 plant also spreads underground using rhizomes.
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. It is cited as a noxious weed in several countries; for example Australia, Brazil, Canada, Ireland, New Zealand, and the United States. Many countries regulate this plant, or its parts (i.e., seed) as a contaminant of other imported products such as grains for consumption or seeds for propagation. In Canada, Cirsium arvense is classified as a primary noxious weed seed in the Weed Seeds Order 2005 which applies to Canada's Seeds

samiran88, pegos, Silvio2006, Argus, maaciejka, marius-secan, yiannis, CeltickRanger, Jakkals, ikeharel, maurydv has marked this note useful
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ThreadThread Starter Messages Updated
To lousat: Farfallevanda 2 01-25 13:22
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Critiques [Translate]

very nice capture. great composition and colour. good sharpness.
tfs
Samiran
your TL submission is also a good work. thanks

  • Great 
  • pegos Gold Star Critiquer/Gold Note Writer [C: 222 W: 0 N: 356] (1982)
  • [2012-01-24 5:52]

Ciao Vanda,
la composizione ha una luce e dei colori davvero fantastici; l'immagine è molto profonda e nitida; trovo lo sfondo superlativo. Molto bella! Complimenti
Un saluto
Enrico

Ciao Vanda, deliziosa composizione con i cardi romanticamente appassiti su un bello sfondo omogeneo e luminiso, splenddi colori e ottima nitidezza, brava, ciao Silvio

  • Great 
  • Argus Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5038 W: 260 N: 15594] (50626)
  • [2012-01-24 6:19]

Hello Vanda,
A fine capture of the Field Thistle during and after flowering. The POV shows the seed heads and flowers with excellent sharpness, natural colours and fine DOF in a pleasing composition against a clean natural BG.
Thanks and best regards
Ciao,
Ivan

Hello Vanda,
Excellent photo, various stages of growth on one stem. Super sharpness and beautiful colors. Excellent background.
Regards
Lucja

hello Vanda
very nice and sharpness composition with great details
thanks greeting lou

Hi Vanda,
really interesting photo of this plant. Amazing colours. Very good sharpness and details.
Thanks for sharing,
Maciek

Hello Vanda,
Wonderful macro with perfect details, focus and exposure.
I love the razor sharp details and the exceptional clarity.
It is a great capture with impressive colors.
Thanks for sharing!
Marius.

Lovely composition with the fresh and dried flowers. Excellent detail and suitable background. Good exposure and colours.
Perfect focus.
regards yiannis

Beautiful photo Vanda! Excellent composition, wonderful BG, fantastic colours and good sharpness.
Regards,
Christodoulos

Hello Vanda,
Wonderful colours and composition for this image. Great POV and blurred BG, too. Well done!
Regards,
Mircea

Ciao Vanda. Un quadro bellissimo! Dettaglio e nitidezza impressionanti.

Roberto

  • Great 
  • PeterZ Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5137 W: 166 N: 13121] (49139)
  • [2012-01-24 11:26]

Hello Vanda,
Nice photo of this thistle in beautiful colours against a great blurred background. Excellent sharpness and details. Fine composition.
Regards,
Peter

  • Great 
  • siggi Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3097 W: 109 N: 12399] (52850)
  • [2012-01-24 12:35]

Hello Vanda.
A nice capture of this beautiful thistle flower. Looks spiny. Very well captured with sharp details. Thanks a lot for sharing.Best regards Siggi

  • Great 
  • lousat Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6595 W: 89 N: 15659] (65489)
  • [2012-01-24 14:27]
  • [+]

Mi tolgo il cappello cara Vanda.Dei dettagli cosi' straordinari e completi su ogni angolo del soggetto sono rarissimi,e poi c'e' uno sfondo con un misto verde carta da zucchero che contrasta alla perfezione il cardo....e che pulizia!! Foto di gran classe.Mi aspetto qualche farfalla dalla prossima primavera...in fondo non e' difficile,basta mettersi davanti al cardo ed aspettare..ehhee....buona giornata e complimenti,Luciano

Hello Vanda

Beautiful composition of these flowers,
with fine POV and appropriate framing,
excellent focus sharpness and details, TFS

Asbed

Hello Vanda,
A Fantastic sharp capture of the Rustic Thistle with excellent detail! Splendid colours and POV with a very good DOF. This image actually tells a story of life on earth. The old withers away and dry up and the colourful youth follows from behind. Excellent notes my friend.
Best regards,
Carl

  • Great 
  • fiyo Gold Star Critiquer/Gold Note Writer [C: 1053 W: 5 N: 3475] (15161)
  • [2012-01-29 13:16]

Merhaba Vanda
clarity, color and BG very beautiful ..
Congratulations ..

Buona sera Vanda,
An immaculate photo with extraordinary sharp details, each thorn shown separately.
The velvet color is in fine contrast to green BG.
Arrivederci
Ike

Ciao Vanda,
una splendida macro di questo pianta comune, in cui possiamo osservare sia fiori freschi che fiori con semi già pronti a disperdersi, bellissima la composizione e magnifico il contrasto dei colori sullo sfondo verde
Grazie e complimenti
Buona settimana
Ciao Maurizio

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