Winter aconite in UV light

Winter aconite in UV light

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Caption: Winter aconite in UV light. Coloured photograph of winter aconite (Eranthis hyemalis) showing the pattern of reflected (red, yellow) and absorbed (dark) ultraviolet (UV) light. The bull's-eye UV pattern is known as a 'nectar guide' and helps to attract pollinating insects, which can see UV light. Humans are unable to see these patterns. This image was taken using a digital camera adapted to filter and detect UV light. The resulting monochrome image was coloured on a computer. UV light is outside the visible spectrum and does not have a true colour. See image B808/1421 for daylight version. Winter aconite is poisonous, containing the toxic chemical aconitine.

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Keywords: aconitine, biological, biology, botanical, botany, coloured, countryside, duo, electromagnetic spectrum, eranthis hyemalis, europe, european, false-coloured, flora, floral, flower, garden, honey guide, inflorescence, mark, marks, nature, nectar guide, pair, petal, petals, plant, plants, poisonous, pollination, ranunculaceae, spectrum, toxic, two, ultraviolet, uv, uv absorbance, uv absorbing, uv pattern, uv photography, uv reflectance, uv reflecting, winter aconite

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