rhododendron ledebourii or ledum siberia flowers on the river an

alpine altai asia azaleas background bactericidal blood blossom bush bushwood cardiovascular daylight drops effect ericaceae evergreen family flower flowering green habitat heart heath herbal leaves ledebourii ledum medicinal native natural nature pink plant pressure rheumatism rhododendron section shrub siberia siberian specie spring sunny tsutsusi venous violet wet wild