linum genus -- flax family
Berlandier's yellow flax (Linum berlandieri) -- in April -- Chihuahuan Desert Nature Center, TX yellow & orange TX-W
wild blue flax (Linum lewisii) -- in May -- Lory State Park, CO blue & purple CO-LSP
wild blue flax (Linum lewisii) -- in May -- Crain High Plains Prairie, Boulder County, CO
blue flax (Linum perenne) -- Left Hand Trail, Boulder County, CO blue & purple
plains flax (Linum puberulum) -- in June -- Pawnee National Grassland, Weld County, CO yellow and orange