The Texas Bluebonnet Tartan was designed by June Prescott McRoberts whose pattern is meant to represent the state flower, the Bluebonnet.  The tartan was officially adopted as the State Tartan of Texas on May 25, 1989, by In-House Concurrence Resolution #242.  STA reference 852, STWR reference 852, SRT reference 4098.  Thread count G4 R2 B16 W2 R2 W2 LB16 W2 LB16 W2 Y1
Own work
Glasshouse