What is sunflowers protective structures?

Is bamboo a tree or shrub? What is the lion vegetation? What five resources are needed to grow plentiful crops? What is the meaning of lagundi leaves? How can I effectively fill in a large pond? What kills the raffelsea arnoldii? How can I grow upside down tomatoes successfully? How can cedar trees be effectively incorporated into landscaping designs to enhance the overall aesthetic appeal of the outdoor space? What are some characteristics of a bromeliad? How many seeds do you typically plant in one hole? What are the leaves of a tree important for? How much sunlight do peace lily plants need to thrive? Is protea flower naturally grown? How often do cyclamen rebloom? How can I effectively prune an overgrown weigela plant? Do garden phlox multiply? How are zebras useful? How can I improve the quality of my clay soil by adding compost? Is cucumber is female unisextual flower? Where does cotton grass live?