File:Jasminum-nudiflorum-(Winter-jasmine)-Vis-UV-IR-comparison.jpg

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Comparison of a Winter jasmine (Jasminum nudiflorum) flower photographed in Visible light (top), ultraviolet light (middle), and infrared light (bottom). The flower is growing near the end of the stem, with two flower buds yet to open below it.

In visible light the flower has five yellow petals with a stigma of a similar colour and tone to the petals. The unopened flower buds have green carpels and yellow petals, with some red markings. The stem is a dark green colour.

In ultraviolet the flower has a dark marking around the centre visible. This is commonly known as a 'nectar guide', as it is thought that it helps guide bees and other insects (which can see ultraviolet light) to the centre of the flower where the nectar and pollen are located. The sepals are much darker in ultraviolet, and the the stem also appears darker.

In infrared the sepals appear brighter, and the stem appears much brighter than it does in visible light.

Although native to China, Jasminum nudiflorum has been cultivated and is grown throughout the world. It flowers from November to March, one of the few plants that flower over the winter.
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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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Date/TimeThumbnailDimensionsUserComment
current23:13, 28 February 2014Thumbnail for version as of 23:13, 28 February 2014350 × 700 (40 KB)Dave Kennard (talk | contribs)UV and IR images were previously in the wrong order
21:34, 28 February 2014Thumbnail for version as of 21:34, 28 February 2014350 × 700 (43 KB)Dave Kennard (talk | contribs){{Information |Description=Comparison of a Winter jasmine (Jasminum nudiflorum) flower photographed in Visible light (top), ultraviolet light (middle), and infrared light (bottom). The flower is growing near the end of the stem, with two flower buds ye...

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