Crotalaria sagittalis is known by the common name Arrowhead Rattlebox. I’ve only seen it in Wilkes County, Georgia. We found it in mid June but, judging by the presence of seed pods, it was probably blooming in May.
The stem, leaves and a flower.
A flower, straight on.
A flower, from above.
A flower, in profile. The stipules on the stem are also visible.
Developing seed pods. These are plump and turn dark purple to black as the seeds ripen.
Crotalaria sagittalis (Arrowhead Rattlebox) is native to the United States and South and Central America. In the United States, it grows in the eastern, southern and central states and in Arizona.
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- United States Department of Agriculture Plants Database: Crotalaria sagittalis (Arrowhead Rattlebox)
- Southeastern Flora: Arrowhead Rattlebox (Crotalaria sagittalis)
- Missouri Plants: Crotalaria sagittalis
- 2010: Year Of The Wildflower – Wildflower Index