''Hydrangea scandens'' is a species of shrub in the

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

family

Hydrangeaceae Hydrangeaceae is a family of flowering plants in the order Cornales, with a wide distribution in Asia and North America, and locally in southeastern Europe. Description The genera are characterised by leaves in opposite pairs (rarely whorled ...

. It is native to Japan, where it is found from the

Kantō region The is a geographical area of Honshu, the largest island of Japan. In a common definition, the region includes the Greater Tokyo Area and encompasses seven prefectures: Gunma, Tochigi, Ibaraki, Saitama, Tokyo, Chiba and Kanagawa. Slight ...

southward. Its leaves are 4-7 cm long, toothed, and have acuminate tips. Flowers are produced in May through June. It is sometimes considered to be a subspecies of ''

Hydrangea anomala ''Hydrangea anomala'', the Japanese climbing-hydrangea, is a species of flowering plant in the family Hydrangeaceae native to the woodlands of the Himalaya, southern and central China and northern Myanmar. It is a woody climbing plant, growing ...

'', under synonymy with ''

Hydrangea petiolaris ''Hydrangea petiolaris'', a climbing hydrangea (syn: ''Hydrangea anomala'' subsp. ''petiolaris''), is a species of flowering plant in the family Hydrangeaceae native to the woodlands of Japan, the Korean peninsula, and on Sakhalin island of eas ...

''.

References

scandens Flora of Japan Taxa named by Karl Maximovich {{Cornales-stub