Field trip with the Fayette Prairie Chapter of the Native Prairies Association of Texas to investigate a remnant prairie led by Jason Singhurst and Tim Siegmund.
Note marked notching of leaves on this species. Last photo shows specimen on the left.
See nearby observations of red Castilleja sp. :
https://www.inaturalist.org/observations/79060142
and https://www.inaturalist.org/observations/79060135.