Definition that contains flower cluster
- hortensia deciduous shrub bearing roundheaded flower clusters opening green and aging to pink or blue
- euphorbia marginata annual spurge of western United States having showy white-bracted flower clusters and very poisonous milk
- genus grammatophyllum small genus of large epiphytic or terrestrial orchids of southeastern Asia to Polynesia; the giants of the Orchidaceae having long narrow leaves and drooping flower clusters often 6 feet long
- snow-in-summer annual spurge of western United States having showy white-bracted flower clusters and very poisonous milk
- hydrangea arborescens deciduous shrub with creamy white flower clusters; eastern United States
- clearweed a plants of the genus Pilea having drooping green flower clusters and smooth translucent stems and leaves
- pilea pumilla a plants of the genus Pilea having drooping green flower clusters and smooth translucent stems and leaves
- fall-blooming hydrangea deciduous shrub or small tree with pyramidal flower clusters
- genus hydrangea type genus of Hydrangeaceae; large genus of shrubs and some trees and vines with white or pink or blue flower clusters; sometimes placed in family Saxifragaceae
- snow-on-the-mountain annual spurge of western United States having showy white-bracted flower clusters and very poisonous milk