The orchids in this gallery are commonly known as Marsh Orchids and their taxonomic classification is within the genus Dactylorhiza. This is a large grouping with many species. A significant number can be found in the UK.

The identification of Dactylorhiza is one of the more challenging tasks for an orchid enthusiast. Individual plants within a population can exhibit variation in morphology such that it is difficult to match a field specimen with a text book example. Hence, it is often necessary to gain an impression from a pool of inspected plants rather than just one individual. Another complicating factor is the fact that species readily form hybrids with other Dactylorhiza and this adds to the potential for confusion.

Expert studies of Dactylorhiza orchid populations often involve the measurement of a series of parameters and their analysis using computer programmes. Anyone with a keen interest in the British Marsh orchids would do well to consult the classic scientific papers on Dactylorhiza , some of the best of which were published by Richard Bateman and Ian Denholm in the BSBI journal Watsonia (available on the BSBI website). Recent molecular analyses have begun to provide a much more robust understanding of these orchids and their evolution.

At present the photographs and species in this gallery reflect my East Anglian base.