Thursday 12 September 2013

Jacobaea vulgaris (Common Ragwort) [Vis UV IR]

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

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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