Great Ragweed

Ambrosia trifida
Sunflower Family - Asteraceae
Ah-choo, Ah-choo. This is the Texas Wildflower that makes a lot of people sneeze each fall.  It is even so important to know when it is spreading it's pollen that you can find out on the evening news.  There are other names for this plant:  Giant Ragweed is one of them.  Some plants get as much as 8 feet tall.  The actual bloom period is from July through September.

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