Reabsorbtion. Occuring more commonly within the nephron system than filtration, this is a form of active transport which takes the the useful substances for the body from the tubules and places them back into the blood filled capillaries.
Oleanders are shrubs, but they are _big_ shrubs. Most of the varieties in cultivation top out at 8 to 12 feet tall and about the same width. The wild form, and some of the older cultivars used for windbreaks top out at 20 x 20 feet.
Two Common Oleander Insect Pests - Early detection can help protect the plant. Two pests that may shorten the lifespan of oleander or make plants look so sickly that you want to get rid of them are the oleander caterpillar and the false oleander scale. Here is what to look for early, before these pest populations build-up. Once you know