| Plant: A bushy densely branched annual. Seedling
usually grows vertically, but falls over creating a 90º bend at
the root crown. The stem resumes a vertical growth which produces
another 90º bend in the main stem. Due to the double
90º bend in the root it usually breaks off at the
ground when dry to become a tumbleweed. A single plant can
produce
20,000 to 50,000 seeds that are scattered as it tumbles. |
 |
| Plant: Indian Springs - 10-Jul-02 |
 |
| Dry Plant: Back Bay Dr. near Salt Dike - 13-Jan-2003 |
 |
| Double 90º bend in root: Tucson, AZ. - 28-Aug-2009 |
| Date: 9/20/2009 |