Thymus pulegioides Large Thyme C DD N
This plant looks very similar to ordinary Thyme (Thymus polytrichus) in both colour and shape of flower but is perhaps less patch forming with more erect stems. However the most useful feature separating the two is the hairs the majority of which are on the angles of the four angled stems in Thymus pulegioides but on opposite faces in Thymus polytrichus.
Thymus pulegioides is common in the chalky soils of southern England and grows there mingled with Thymus polytrichus. There is very little in the Midlands, northern England, Scotland or Wales and what has been found there has almost certainly been introduced.
Weeting Nature reserve, Breckland, 4th September 2011
Added on 1st January 2012, updated 15th February 2012