Ultraviolet Flowers

Ranunculus reptans L.
Ranunculus reptans. Visible light
Visible light
Nikon F5 , UV-Nikkor 105 mm f/4.5, Fuji RTP, Nikon A12 (85B) filter, no flash
Ranunculus reptans. Visible light
UV light
Nikon F5 , UV-Nikkor 105 mm f/4.5, Fuji RTP @64 ISO, FF filter, SB-140
Both images
© Bjørn Rørslett/NN
A small aquatic or semi-aquatic, prostrate species growing on muddy shores and in water to a depth of around 2 m. It thrives quite well in lakes regulated for hydroelectric purposes, too. Flowering occurs when the shoots are laid dry; cleistogamic flowers might occur on submerged plants however.

Perhaps because this species may not flower each year, attracting pollinators is important and this helps explain the strong UV patterns of this small-flowered aquatic.

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Last Update 1 October, 2002