One of many bluebonnets that appear in this location every year.
Lupinus polyphyllus, or a relative.
Supposedly a 500 year wildflower bloom. The air was sweet with their fragrance.
Lupinus, commonly known as lupin or lupine (North America), is a genus of flowering plants in the legume family, Fabaceae. The genus includes over 200 species, with centers of diversity in North and South America. Smaller centers occur in North Africa and the Mediterranean.