<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> <Table> <Tr> <Td> <Table> <Tr> <Td> </Td> </Tr> <Tr> <Td> Flowering venus flytrap showing its long flower stem </Td> </Tr> </Table> <Table> <Tr> <Td> </Td> </Tr> <Tr> <Td> Closeup of flower (c. 20 mm in diameter) </Td> </Tr> </Table> <Table> <Tr> <Td> </Td> </Tr> <Tr> <Td> The species produces small, shiny black seeds </Td> </Tr> </Table> </Td> </Tr> </Table> <Tr> <Td> <Table> <Tr> <Td> </Td> </Tr> <Tr> <Td> Flowering venus flytrap showing its long flower stem </Td> </Tr> </Table> <Table> <Tr> <Td> </Td> </Tr> <Tr> <Td> Closeup of flower (c. 20 mm in diameter) </Td> </Tr> </Table> <Table> <Tr> <Td> </Td> </Tr> <Tr> <Td> The species produces small, shiny black seeds </Td> </Tr> </Table> </Td> </Tr>

Where do venus fly trap seeds come from