How can plants that compete for the same resources grow in the same area without one driving the other to extinction?

One of my favorite plants for the Texas landscape is the Rock Rose because it does so well in our area. Pavonia lasiopetela − known as Rock Rose, Rose Pavonia, Rose Mallow, Texas Mallow or Texas ...

According to the scientists, neither cork oaks nor gum rockroses control their water flows much in winter or spring. However, this changes during the summer drought, when cork oaks limit their water ...