TerraForums Venus Flytrap, Nepenthes, Drosera and more talk
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Most sundews exhibit tentacle motion, but it is not rapid. Some of the fastest are burmanii, sessilifolia and gladuligera. Looking closely at the above, you should be able to detect the motion. There is speculation that Droserae from the section theocalyx which includes burmanii evolved into Dionaea (VFT), and retained this rapid response. Other good examples include capensis, intermedia, and regia the lamina of which wrap around the prey.
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