blue, pink, purple, white
July - November
0.6 - 0.9
The flowers attract butterflies and bees.
Generally this species is abundant on limestone areas of central Texas, through northern Arkansas, and into southern Missouri. It was collected on one railroad remnant in Louisiana but was probably adventive. It is common in east Texas and often appears temporarily in restorations using seeds collected in east Texas.
Limestone glades, bald knobs, open, sandy areas, and gravelly stream edges.