Dave Kennard

Dave Kennard

Posted on 06/11/2013


Photo taken on June 11, 2013


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Keywords

Asteraceae
Hieracium aurantiacum
Angiosperms
Pilosella
Asters
Tawny Hawkweed
Devil's Paintbrush
Grim-the-collier
Flowering Plants
Biota
Dicotyledons
UV Photography
IR Photography
Nectar guide
Pilosella aurantiaca
Orange Hawkweed
Life
Infrared
Vitae
Plants
Ultraviolet
Plantae
Magnoliophyta
Magnoliopsida
Sunflowers
Daisies
Asterales
Eukaryota
Compositae
Fox-and-cubs


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Orange Hawkweed (Pilosella aurantiaca) flower Vis-UV-IR

Orange Hawkweed (Pilosella aurantiaca) flower Vis-UV-IR
Comparison of a Orange Hawkweed (Pilosella aurantiaca) flower in visible light (top), ultraviolet light (centre), and infrared light (bottom).

The flower appears slightly different in ultraviolet compared to visible light. In UV the flower gets darker towards the centre of the flower, with an area quite a bit darker than the rest of the flower around the centre. The very centre (possibly the tips of petals that have yet to unfurl?) is quite bright.

In visible light the flower gets lighter towards the centre, while the very centre is darker.

In infrared light the flower does not have much tonal variation other than a slight dark ring around the centre of the flower (also present in visible light).

This image is licensed under a Creatives Commons licence CC-BY-SA. If you would like to use the image, please credit the image to Dave Kennard / www.davidkennardphotography.com/.

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