"Rhizobium" can form a symbiotic relationship with white clover seedling roots and form colonies. Among its foods is the nectar of the white clover and the creeping buttercup. Meadow herbs include white clover and poppy. Almost always, a white clover will be trifoliolate. The northern embankment supports plants such a common milkwort, common centaury and white clover. Kansas and White Clover merged and the group was signed to Don Kirshner's label. Dried white clover flowers may also be smoked as an herbal alternative to tobacco. It was first reported in white clover ("Trifolium repens ") as early as 1939. Apart from those, they also often visit white clover florets. White clover has been described as the most important forage legume of the temperate zones. The most widely cultivated clovers are white clover, "Trifolium repens", and red clover, "Trifolium pratense". White clover is commonly grown in mixtures with forage grasses, e.g. perennial ryegrass ("Lolium perenne").