Tormentil in UV light

Tormentil in UV light

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This image is part of the feature Uv Flowers


Caption: Tormentil in UV light. Photograph of a tormentil (Potentilla erecta) flower coloured to show areas that reflect (white) or absorb (red) ultraviolet (UV) light. The bull's-eye pattern, known as a 'nectar guide', is thought to help attract pollinating insects, which can see in UV light. This image was taken on a digital camera adapted to filter and detect UV light. The resulting monochrome image was coloured on a computer. UV light is invisible to humans and does not have a true colour. See image B830/3437 for normal daylight version.


Keywords: biological, biology, botanical, botany, bull's eye, bull's-eye, bulls-eye, coloured, countryside, electromagnetic spectrum, europe, european, false-coloured, flora, floral, flower, garden, honey guide, inflorescence, mark, marks, nature, nectar guide, one, petal, petals, plant, plants, pollination, potentilla erecta, rosaceae, single, spectrum, tormentil, ultraviolet, uv, uv absorbance, uv absorbing, uv pattern, uv photography, uv reflectance, uv reflecting
