File:Jacobaea vulgaris (Common Ragwort) flowers Vis UV IR comparison.jpg

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English: Comparison of Jacobaea vulgaris (Common Ragwort) flowers photographed in visible light (top), ultraviolet light (middle), and infrared light (bottom).

In visible light the plant has bright yellow flower heads with slightly darker centres.

In ultraviolet light the centres are much darker.

In infrared light the centres of the flower heads appear brighter, as does the foliage.
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Author Dave Kennard
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(Reusing this file)		 Image licensed CC-BY-SA 3.0 Please credit image to David Kennard / www.davidkennardphotography.com

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Please credit image to David Kennard / www.davidkennardphotography.com

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current20:41, 11 September 2013Thumbnail for version as of 20:41, 11 September 2013350 × 700 (63 KB)Dave Kennard (talk | contribs){{Information |Description ={{en|1=Comparison of Jacobaea vulgaris (Common Ragwort) flowers photographed in visible light (top), ultraviolet light (middle), and infrared light (bottom). In visible light the plant has bright yellow flower heads with...

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