<P> Speed of closing can vary depending on the amount of humidity, light, size of prey, and general growing conditions . The speed with which traps close can be used as an indicator of a plant's general health . Venus flytraps are not as humidity - dependent as are some other carnivorous plants, such as Nepenthes, Cephalotus, most Heliamphora, and some Drosera . </P> <P> The Venus flytrap exhibits variations in petiole shape and length and whether the leaf lies flat on the ground or extends up at an angle of about 40--60 degrees . The four major forms are:' typica', the most common, with broad decumbent petioles;' erecta', with leaves at a 45 - degree angle;' linearis', with narrow petioles and leaves at 45 degrees; and' filiformis', with extremely narrow or linear petioles . Except for' filiformis', all of these can be stages in leaf production of any plant depending on season (decumbent in summer versus short versus semi-erect in spring), length of photoperiod (long petioles in spring versus short in summer), and intensity of light (wide petioles in low light intensity versus narrow in brighter light). </P> <P> The plant's common name refers to Venus, the Roman goddess of love . The genus name, Dionaea ("daughter of Dione"), refers to the Greek goddess Aphrodite, while the species name, muscipula, is Latin for "mousetrap". </P> <P> Historically, the plant was also known by the slang term "tipitiwitchet" or "tippity twitchet", possibly an oblique reference to the plant's resemblance to human female genitalia . </P>

Where did the name venus flytrap come from
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