linum genus -- flax family
Berlandier's yellow flax (Linum berlandieri) -- in April -- Chihuahuan Desert Nature Center, TX yellow & orange
wild blue flax (Linum lewisii) -- in May --Lory State Park, CO blue & purple
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
stiffstem flax (Linum rigidum) -- in August -- Pawnee National Grassland, CO yellow & orange
stiffstem flax (Linum rigidum) -- in August -- Sportsman Lake Road, WY yellow & orange