Avery (2015) Hard Red Winter Wheat These wheat varieties belong to the hard red winter (HRW) wheat class of the botanical group Triticum aestivum , also known as bread or common wheat. Since inception of the CSU Wheat Breeding Program in 1963, over 40 improved wheat varieties have been developed and released by our program. CSU Extension Seed-Related Fact Sheets AG Icon offers producers exceptional yield performance, and excellent straw strength.