Viburnum opulus Nanum Deciduous shrub, dense mound, upright, spreading, arching branches. Leaves opposite, 5-10 cm long, as wide or wider, pointed lobes (maple-like), glossy dark green in summer, may turn reddish in fall, a few disk-like glands on grooved petiole. Showy flowers sterile, in sphere-like clusters, 6.5-7.5 cm diam., which cover plant in May, initially…