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Campanula patula [Spreading Bellflower]


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Rørslett, B. 2014. Campanula patula L. (Campanulaceae). Spreading Bellflower. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...ing-bellflower/

 

Campanula patula L.

NO: Engklokke

SE: Ängsklocka

DK: Eng-Klokke

FI: Harakankello

DE: Wiesen-Glockenblume

EN: Spreading Bellflower

 

A medium tall bellflower native to Europe and having a prevalence towards the eastern parts of its range. It is currently expanding its range in Norway but still is fairly uncommon. Campanula patula prefers dry meadows and open soils such as found on road verges or waste fields. The flowers have a peculiar pale purplish colour, sometimes even almost white, and the five lobes of the deeply divided corolla are sharply pointed and spreading. Thus this is an easily identified species in the field.

 

Specimens were collected from Blaker, southern Norway 7 July 2014. C. patula here occurs in abundance along a historical narrow-gauge railway track.

 

CAMP_PAT_B1407071666_VIS.jpg

Image reference: CAMP_PAT_B1407071666_VIS.jpg

Visible light: Nikon Df, Voigtländer APO-Lanthar 125 mm f/2.5 lens, daylight (low levels so high ISO is used).

 

Do note the pale purple colour so typical for the flowers of C. patula, and the tendency for the centre of the corolla to appear in a lighter tonality.

 

CAMP_PAT_I1407071998_UV.jpg

Image reference: CAMP_PAT_I1407071998_UV.jpg

Ultraviolet light: Nikon D3200 (modified), UV-Nikkor 105 mm f/4.5 lens, internal Baader U2" (Venus) filter, SB-140 flash.

 

There is a clear similarity in the UV signature of C. patula and Legousia speculum-veneris (http://www.ultraviol...-looking-glass/), despite the evident difference in the construction of the corolla.

 

[Published 7 July 2014]

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