White wildflower, possibly a 'common mouse ear'

A few days ago I noticed a clump of small white flowers growing by one of our compost heaps. Looking closely at it I thought the colours were quite delicate and worth recording. As it was late afternoon I managed to get some photos of the plants as they were growing and the following day I took a cutting indoors to take a selection of photographs of the whole plant and the flowers in a 'studio' setting.

Looking at my reference books and field guide my best guess is that it may be a 'common mouse-ear' but the leaves are not as hairy as the field guides suggest. The anthers are a pale blue whereas other specimens are yellow. I would be grateful if anyone can positively identify it.

Shown here are some of the results - more can be seen in the wildflower section of the environment gallery.

The first picture shows a complete flower - it is less than 1/2" across. I think this is a really beautiful flower close-up, but plain looking when seen from a distance.

The second image below is a crop from another photograph - this gets in closer to the centre of the flower. I do love the pale grey-blue anthers and how they contrast with the green parts.




This third picture shows a flower bud just starting to open - it could only be a about 1/4" long. Note the fine transparent hairs on the sepals and stem - many of these end in a fine ball. which you can just make out.




Technical details:
Camera: Canon EOS350D
Lens: Canon 17-85mm IS lens for the outside photos, an older 100mm macro for the 'studio' shots
Sensitivity: ISO200
Exposure: Outside: Aperture priority with the camera on auto. -1/3 stop was required, typically 1/40 @ f9.
Inside: 1/200 @f16 with flash diffused through a 'Lastolite' screen.
Lighting: Outside - Natural light in the evening shade. -Inside diffused flash
Other: The 'Studio' is a home-made unit made from a cardboard box.