It's Agalinis time! False foxglove season!
Here's my guide from last year:
https://www.inaturalist.org/journal/pfau_tarleton/27184-false-foxgloves-how-to-know-the-species-of-agalinis-in-texas
For those in the Tarrant Co. area, A. auriculata was documented long ago but hasn't been seen since. Is it still hanging on in some out-of-the-way place?
Along the Red River, A. aspera may occur. It's been found on the north side of the river, but not the south side.
The distribution of all of the other species hasn't been well documented. But we made much headway last season!
The identifying characteristics can be quite subtle, so photographs of from multiple angles of all the critical characteristics is important.