Prairie Bluebell (Mertensia lanceolata)

Prairie Bluebell
Macro of calyx lobes, interesting concave bow with hairy tips and edges.
Note the two styles in the shot as well.
Prairie Bluebell
Style extends beyond anthers.
Prairie Bluebell
Leaf hairs mostly appressed and pointing away from vein, usually a brevistyla characteristic.
Prairie Bluebell
Different plant near by.
Prairie Bluebell
And yet another.
See details about this species on the loco gallery page here.