Dandelion
Taraxacum officinale

Taken within the grounds of Warblington Church in Hampshire.
The Dandelion has to be one of the most common wildflowers within Britain, one of the reasons why is because they are apomictic (do not need fertilising) with around 200 microspecies. This particular one flowers between March and October. The common name derives from the French 'dent de lion', meaning 'lion's tooth', which refers to the deeply toothed, deep green leaves, that are arranged in rosettes.