Hydrangea anomala

Hydrangea anomala, the Japanese climbing-hydrangea,[2] is a species of flowering plant in the family Hydrangeaceae native to the woodlands of the Himalaya, southern and central China and northern Myanmar.

Hydrangea anomala
Hydrangea anomala
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Cornales
Family: Hydrangeaceae
Genus: Hydrangea
Species:
H. anomala
Binomial name
Hydrangea anomala
Synonyms[1]

It is a woody climbing plant, growing to 12 m height up trees or rock faces, climbing by means of small aerial roots on the stems. The leaves are deciduous, ovate, 7–13 cm long and 4–10 cm broad, with a heart-shaped base, coarsely serrated margin and acute apex. The flowers are produced in flat corymbs 5–15 cm diameter in mid-summer; each corymb includes a small number of peripheral sterile white flowers 2-3.5 cm across, and numerous small, creamy-white fertile flowers 1–2 mm diameter. The fruit is a dry urn-shaped capsule 3–5 mm diameter containing several small winged seeds.

The closely related Hydrangea petiolaris from eastern Siberia, Japan, and Korea, is sometimes treated as a subspecies of H. anomala; it differs in growing larger (to 20 m) and flower corymbs up to 25 cm diameter. The common name Climbing hydrangea is applied to both species.

Cultivation and uses
Hydrangea anomala flowers.

Hydrangea anomala is grown as an ornamental plant. The subspecies H. anomala subsp. petiolaris has received the Royal Horticultural Society's Award of Garden Merit.[3]

Etymology

‘Hydrangea’ is derived from Greek and means ‘water vessel’, which is in reference to the shape of its seed capsules.[4]

‘Anomala’ means ‘anomalous’ or ‘unlike its fellows’.[4]

References
  1. "The Plant List: A Working List of All Plant Species". Retrieved April 3, 2014.
  2. "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
  3. "Hydrangea anomala subsp. petiolaris". RHS. Retrieved 28 August 2020.
  4. Gledhill, David (2008). "The Names of Plants". Cambridge University Press. ISBN 9780521866453 (hardback), ISBN 9780521685535 (paperback). pp 50, 206
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