Johnstonella genus --- borage family

narrowleaf pick-me-not (Johnstonella angustifolia)  -- in March  -- Boyce Thompson Arboretum SP, AZ     white & cream  AZ-SRN

narrowleaf pick-me-not (Johnstonella angustifolia) -- in April -- Big Bend National Park, TX     white & cream    TX-BBR