What are successful invaders?

There are certain members of the plant and animal world that I call successful invaders. Some are admired; others are reviled. A few are both liked and despised at the same time.

Western juniper

Where I live, the Western juniper, Juniperus occidentalis, fits into that last category. It is a native species but due to fire suppression and habitat destruction, it has spread like -excuse the reference- wildfire. Juniper has taken advantage of the situation and has significantly expanded its range. I have heard a lot about how much water it can suck out of the landscape – supposedly 30 gallons a day.  Its root system taps downwards and outwards to effectively use the available water. Many people don’t like them for that reason and because at times they have a not-so-pleasant scent.  I’ll always remember listening to a person that lives in the wealthy part of town saying that she eliminated all 18 junipers on her property as soon as she moved in. Eighteen trees.

However, juniper also has its good side. As it ages it epitomizes the image many people associate with the Wild West. I love to photograph them. The form of the tree generally changes from a pyramid-like shape to a twisted, sprawling irregular one. It can be covered by purplish berries (that are really cones) and these are used in gin production. Wildlife loves it for cover, nesting, and food. Its wood is bi-colored and long lasting.