Viburnum plicatum

Viburnum plicatum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Dipsacales
Family:	Adoxaceae
Genus:	Viburnum
Species:	V. plicatum
Binomial name
Viburnum plicatum Thunb.

Viburnum plicatum is a species of flowering plant in the family Adoxaceae (formerly Caprifoliaceae), native to mainland China, Korea, Japan, and Taiwan.[1] The Latin specific epithet plicatum means "pleated", referring to the texture of the leaves.[2]

Description

"Snowball" flowers of a sterile cultivar

Growing to 3 m (10 ft) tall, it is a deciduous shrub. The leaves are opposite, 5–10 cm (2–4 in) long and 3–6 cm (1–2 in) broad, simple ovate to oval, with a serrated margin.

Plants from Taiwan are sometimes distinguished as Viburnum plicatum var. formosanum Liu & Ou.[3]

Inflorescences

The flowers are produced in flat corymbs 5–10 cm (2–4 in) in diameter, comprising a central cluster of fertile yellowish-white flowers 5 mm (0.20 in) in diameter, surrounded by a ring of showy, sterile flowers 2–3 cm in diameter, which act as a target guide to pollinating insects. The fruit is an ovoid blue-black drupe 8–10 mm long.[4][5]

Cultivation

Viburnum plicatum is a popular ornamental plant, both in its native area and other temperate regions. Some of the more popular cultivars are selected for having all of their flowers large and sterile with few or no fertile flowers; their flowerheads resemble a snowball, giving them the popular name Japanese snowball bush. Cultivars of this type include 'Grandiflorum' and 'Rotundifolium'.

Cultivars

Cultivars with wild-type flowerhead structure are sometimes described as a separate botanical form V. plicatum f. tomentosum. They include 'Cascade', 'Lanarth' and 'Rowallane'.[4][5]

The following cultivars in this group have received the Royal Horticultural Society's Award of Garden Merit:[6]

• 'Cascade'[7]
• 'Mariesii'[8]
• 'Pink Beauty'[9]
• 'Popcorn'[10]
• 'Summer Snowflake'[11]

References

1. "Viburnum plicatum". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 14 January 2018.
2. Harrison, Lorraine (2012). RHS Latin for Gardeners. United Kingdom: Mitchell Beazley. ISBN 978-1845337315.
3. Taiwan Endemic Species Research Institute: Viburnum plicatum var. formosanum Archived January 1, 2008, at the Wayback Machine
4. Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan ISBN 0-333-47494-5.
5. Bean, W. J. (1980). Trees and Shrubs Hardy in the British Isles 8th ed., vol. 4. John Murray ISBN 0-7195-2428-8.
6. "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 107. Retrieved 16 February 2019.
7. "Viburnum plicatum f. tomentosum 'Cascade'". RHS. Retrieved 5 March 2021.
8. "RHS Plant Selector - Viburnum plicatum 'Mariesii'". RHS. Retrieved 5 March 2021.
9. "Viburnum plicatum f. tomentosum 'Pink Beauty'". RHS. Retrieved 5 March 2021.
10. "Viburnum plicatum f. tomentosum 'Popcorn'". RHS. Retrieved 5 March 2021.
11. "RHS Plantfinder - Viburnum plicatum f. tomentosum 'Summer Snowflake'". Retrieved 16 February 2019.