Coloured nectar: distribution, ecology, and evolution of an enigmatic floral trait

  title={Coloured nectar: distribution, ecology, and evolution of an enigmatic floral trait},
  author={Dennis M. Hansen and Jens M. Olesen and Thomas Mione and Steven D. Johnson and Christine B. M{\"u}ller},
  journal={Biological Reviews},
While coloured nectar has been known to science at least since 1785, it has only recently received focused scientific attention. However, information about this rare floral trait is scattered and hard to find. Here, we document coloured nectar in 67 taxa worldwide, with a wide taxonomical and geographical distribution. We summarise what is currently known about coloured nectar in each of the lineages where it occurs. The most common nectar colours are in the spectrum from yellow to red, but… 

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