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Erysimum strictum [European Wallflower]


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#1 nfoto

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Posted 23 May 2013 - 10:27

Rørslett, B. 2013. Erysimum strictum P.Gaertn., B.Mey. & Scherb. (Brassicaceae). European Wallflower. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...ean-wallflower/

Erysimum strictum P.Gaertn., B.Mey. & Scherb.
Syn. Erysimum hieraciifolium auct. non L.; Erysimum virgatum auct.
NO: Berggull
SE: Begkårel; berggyllen
DK: Rank Hjørneklap
FI: Rantaukonnauris
IS: Aronsvöndur
DE: Steifer Schöterich
EN: European Wallflower

This is a medium tall, to 1 m, crucifer species native to Europe and Russia. The main distribution is eastern and E. strictum is not native to the British Isles. It does occur natively in Iceland, though. E. strictum prefers dry habitats and occur on rockfaces, road verges, urban wastelands, railway embankments, and similar localities. It flowers in June or July.

Plants collected and photographed near Oslo, Norway, 8 June 2005.

Attached Image: ERYS_STR_I0506089087_VIS.jpg
Image reference: ERYS_STR_I0506089087_VIS.jpg
Visible light: Nikon D70, JML 50 mm f/3.5 lens, Baader UV/IR Cut filter, daylight.

Attached Image: ERYS_STR_I0506089088_UV.jpg
Image reference: ERYS_STR_I0506089088_UV.jpg
Ultraviolet light: Nikon D70, JML 50 mm f/3.5 lens, Hoya U-330 + B+W BG-38 filter, SB-140 flash.

The buds of E. strictum are hairy and light up brightly in UV, while the petals is moderately to low as far as UV reflectivity is concerned. This UV signature sharply contrasts that of the related E. cheiranthoides http://www.ultraviol...tle-wallflower/.

[Published 23 May 2013]