Identifying Features. The saguaro cactus (Carnegiea gigantea) is one of the defining plants of the Sonoran Desert. These plants are large, tree-like columnar cacti that develop branches (or arms) as they age, although some never grow arms. These arms generally bend upward and can number over 25.Saguaros are covered with protective spines, white flowers in the late spring, and red fruit in summer.hese plants are large, tree-like columnar cacti that develop branches (or arms) as they age, although some never grow arms. These arms generally bend upward and can number over 25. Saguaros are covered with protective spines, white flowers in the late spring, and red fruit in summer.
Here's a guide to the life expectancy of big-ticket purchases, from the roof down to the refrigerator. Most kitchen appliances, such as refrigerators, dishwashers and gas range ovens, should be replaced every 10 to 15 years. By Geoff Williams.
It depends, and if it doesnât have an expiration date, it could be difficult to determine. Some foods have superior life spans, while others decay at an alarming rate. Keep reading to find out the life span of food that you're stashing in the back of your fridge right now. Life span: Two days to a week.