Poplar

Leaves of a white poplar tree, Populus alba.  This species is recognisable by the white undersides of the leaves and the diamond-shaped scars on the trunk:

Photos taken in Whiteknights Park, Reading, UK, on 2014-04-06.

Roses

Flowers of a rose bush (Rosa sp).

The leaves look like:

Photos taken in Whiteknights Park, Reading, UK, on 2013-06-29.

Meadow Crane's-Bill

Meadow crane's-bill, Geranium pratense.

Photo taken in Whiteknights Park, Reading, UK, on 2013-06-15.

Bluebells

Bluebells, Hyacinthoides non-scripta.

Photo taken in Whiteknights Park, Reading, UK, on 2013-05-06.

Lady's Smock

Flowers of lady's smock, Cardamine pratensis.  Also known as cuckoo flower or milkmaid.

Photo taken in the field below Chazey Wood, near Caversham, UK, on 2013-05-05.