I was shooting Zinnias today, when I saw one flowering aside another bright yellow flower. I noticed the Zinnias being frequently visited by bees and bumblebees, whereas the similar looking yellow one had only few guests.
[click on images to see larger ones]
Standardized reflected false UV "colors" according to the previously described "UV color palette" related to wavelength.
The normal and high intensity palette:
Well, the reflected UV image shows clearly how that Zinnia flowers wins the "competition":
Even covered by other plants it makes itself clearly seen (see blurry BG Zinnia). So not really "competition" for that UV-bright Zinnia (340-360nm).
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos