Allium ursinum umbel of six to 20 white flowers only, lacking the bulbils produced by some other "Allium" species such as "Allium vineale" (crow garlic) and "Allium oleraceum" (field garlic). It flowers in the British Isles from April to June, starting before deciduous trees leaf in the spring. The flower stem is triangular in cross-section and the leaves are broadly lanceolate similar to those of the lily of the valley ("Convallaria majalis"). It is native to temperate regions of Europe, from Britain east to the Caucasus. It is common in much of the lowland British Isles with the exception of the far
Dactylorhiza majalis 1965. Sometimes the name "Dactylorhiza fistulosa" is used, but since this description is not valid, the name cannot be used despite its earlier publication in 1794 as "Orchis fistulosa". Many synonyms have been published: Many names have been proposed at the subspecies, variety and form levels, but as of June 2014 only the following are recognized: The western marsh orchid hybridizes quite commonly with other species of its genus. More rarely, hybrids with other genera (intergeneric hybrids) occur. "Dactylorhiza majalis" is widespread across much of Europe and north-central Asia from Spain and Ireland to Siberia and Kazakhstan. In Germany the