Plants

By:Braxston Redmond 5th period

1a there are a lot of leaves ...................................... Go to 2

1b leaves are big................................. Go to 3


2a leaves surround the corolla..................... Weigela

2b leaves don't surround the corolla..........................Go to3


3a there are many leaves but do not surround the corolla..............Hydrangeas blossom

3b leaves are big.............................. Go to 4


4a leaves are pink but have a red corolla...................... Rose of sharon

4b flower is tall........................ Sun flower


5a flower is small and pink...........................Hybrid tea bushes

5b flower is orange......................Annuals

Tropisms

Hydrotropism- roots growth towards water

Positive Taxis Example- a trees roots grow towards a river

Negative Taxis Example- all plant roots show a positive taxis to water


Phototropism- plant growth due to light

Positive Taxis Example- a maple tree's shoot system grows up towards sunlight

Negative Taxis Example- a maple tree's root system grows down away from sunlight


Geotropsim- plant growth due to gravity

Positive Taxis Example- a rose's root system grows down towards gravity

Negative Taxis Example- a rose's shoot system grows up away from gravity


Thigmotropism- plant growth due to touch

Positive Taxis Example- vines grow up a wall

Negative Taxis Example- a sunflower grows and touches a wall and then starts growing away from the wall