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UltravioletPhotography

Rubus odoratus [Flowering Raspberry]


nfoto

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Rørslett, B. 2014. Rubus odoratus L. (Rosaceae). Flowering Raspberry. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...ring-raspberry/

 

This member of the large genus Rubus is for once an easily identifiable species, native to eastern North America and widely cultivated for its decorative large flowers elsewhere. It is a small perennial bush and flowers in early summer with showy purplish flowers.

 

Material photographed in Sørum outside Oslo, Norway 14 July 2014.

 

RUBU_ODO_B1407144872_VIS.jpg

Image reference: RUBU_ODO_B1407144872_VIS.jpg

Visible light: Nikon Df, Voigtländer APO-Lanthar 125 mm f/2.5 lens, daylight.

 

RUBU_ODO_I1407142017_UV.jpg

Image reference: RUBU_ODO_I1407142017_UV.jpg

Ultraviolet light: Nikon D3200 (modified), UV-Nikkor 105 mm f/4.5 lens, internal Baader 2" (Venus) filter, SB-140 flash.

 

The petals are quite UV reflective hence appear bright, while the central disc with anthers and stigmas is dark. According to the UV records I acquired, the petals appear to have a lack of conical cells, or at least these are poorly developed unlike what we observe for e.g. Rosa flowers.

 

[ Published 15 July 2014 ]

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In my country the fruits never ripen. But they are said to be pretty dry and lacking in taste.

 

UV is the great discloser of surface detail.

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