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
White Main Spring White Main Spring The White Main Spring () is the source of the White Main river, the right-hand and northern headstream of the River Main, a major tributary of the Rhine in Germany. It is located at a height of 887 metres above sea level on the eastern slopes of the Ochsenkopf mountain and is viewed as the source of the Main, even though the Red Main is several kilometres longer. Usually the White Main Spring is stronger (i.e. has a higher volumetric flow) than the Red Main Spring. Margrave Frederick of Brandenburg had it traced in 1717 and impounded