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Drosera Rotundifolia by May Lattanzio

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A sundew found in seeps and roadside ditches. Bayou George, Northwest Florida. It grows in flat rosettes. I left the pine needle there for comparison. It lives in community with the threadleaf sundew.

The following comes from Springerlink:

Summary Earlier feeding experiments with Drosera in the field using adult Drosophila melanogaster as prey had shown that D. intermedia reacts three times as strong with respect to biomass production as the sympatric species D. rotundifolia. The present study shows that in D. rotundifolia only 29% of added flies remain on the leaves for more than 24 h, but 95% in D. intermedia. Opportunistic predators, mostly ants, are likely to be responsible for this difference. Ants were often observed robbing food from the leaves of D. rotundifolia, and showed a much higher activity in the microhabitat of this species. In both species of Drosera larger individuals were better than smaller ones in retaining added flies. The activity of ants significantly increased with air temperature and the duration of sunshine. The advantage of plundering seems to be more important for the ants than the danger of being caught. The prey collected from Drosera may be an important source of food for bog-dwelling ants.

Tags

florida, plant, native, carnivorous, wildflower, northwest, drosera, sundew, rotundifolia

Author, poet, freelance writer, rescuer of dogs and cats,
animal welfare advocate, hookbill owner, occasional wildlife rehabilitator, chaser of bugs who just loves photography.

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Comments

  • Carla Wick/Jandelle Petters
    Carla Wick/Jan...over 5 years ago

    oooo the colors on this turned out beautiful! i’d love to see one of thse up close. can u smell them at all?

  • Digitalbcon
    Digitalbconover 5 years ago

    This is just perfect!! I like the use of the pine needle for size ratio comparision! This is so helpful in searching for and identifying these flowers!! They are so small that you would miss them if you weren’t looking for them! Great addition to the group!!

  • lcbirder
    lcbirderover 5 years ago

    Very nice dimension to the sundew. They usually look so flat. We have a lot in the wetlands in South Florida also.

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