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 subsp. traunsteinerioides "Dactylorhiza lapponica" belong to this taxon, neither species being found in these countries. "D. majalis" subsp. "traunsteinerioides" is endemic to Great Britain and western Ireland. It is found in damp base-rich locations, including calcareous fens. Stace (2010) gives its distribution within Britain as "especially East Anglia, Yorkshire, north Wales and western Scotland". On the basis of genetic studies, Hedrén et al. (2011) say that plants attributed to subsp. "traunsteinerioides" found below a line extending from the mid-Wales coast to the Humber Estuary in Yorkshire actually belong to subsp. "praetermissa". Dactylorhiza majalis subsp. traunsteinerioides Dactylorhiza majalis" subsp. "traunsteinerioides, known as the