climbing hydrangea

(noun) climbing shrub with adhesive aerial roots having opposite leaves and small white flowers in terminal cymes; Himalayas to Taiwan and Japan. Synonyms: climbing hydrangea, Schizophragma hydrangeoides.

(noun) deciduous climber with aerial roots having large flat flower heads. Synonyms: climbing hydrangea, Hydrangea petiolaris.

(noun) deciduous climber with aerial roots having white to creamy flowers in fairly flat heads. Synonyms: climbing hydrangea, Hydrangea anomala.