Hydrangea paniculata

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Ordo: Cornales

Familia: Hydrangeaceae
Subfamilia: Hydrangeoideae
Tribus: Hydrangeeae
Genus: Hydrangea
Sectione: Hydrangea sect. Heteromallae
Species: Hydrangea paniculata
Name

Hydrangea paniculata Siebold (1829)
Homonyms

Hydrangea paniculata Raf. = Hydrangea arborescens L.

Synonyms

Heteromalla paniculata (Siebold) H.Ohba & S.Akiyama, J. Jap. Bot. 91(6): 350 (2016)
Heteromalla paniculata f. debilis (Nakai ex H.Hara) H.Ohba & S.Akiyama, J. Jap. Bot. 91(6): 350 (2016)
Heteromalla paniculata f. grandiflora (Siebold ex Van Houtte) H.Ohba & S.Akiyama, J. Jap. Bot. 91(6): 350 (2016)
Hydrangea kamienskii H.Lév., Bull. Acad. Int. Geogr. Bot. 12: 115 (1903)
Hydrangea paniculata f. grandiflora (Siebold) Ohwi, Fl. Jap., revised ed., [Ohwi] 511 (1965)
Hydrangea paniculata f. velutina (Nakai) H.Ohba, Fl. Japan 2b: 87 (2001)
Hydrangea paniculata var. debilis Nakai ex H.Hara
Hydrangea paniculata var. grandiflora Siebold ex Van Houtte
Hydrangea sachalinensis H.Lév., Repert. Spec. Nov. Regni Veg. 8(173-175): 282 (1910)
Hydrangea schindleri Engl., Nat. Pflanzenfam. Aufl. 2, 18a: 203 (1930)
Hydrangea verticillata W.H.Gao, Acta Phytotax. Sin. 25(5): 410-411, f. 1 (1987)

Distribution
Native distribution areas:

Continental: Asia-Temperate
Regional: China
China North-Central, China South-Central, China Southeast
Regional: Eastern Asia
Japan, Kuril Is., Sakhalin, Taiwan

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Siebold, P.F.v. 1829. Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 14(2): 691.

Additional references

Akiyama, S., Thijsse, G., Esser, H.-J. & Ohba, H. (2014). Siebold and Zuccarini's type specimens and original materials from Japan, part 5. Angiosperms. Dicotyledoneae 4 The Journal of Japanese Botany 89: 279-330.
Barkalov, V.Y. (ed.) (1991). Plantae Vasculares Orientalis Extremi Sovietici 5: 1-388. Nauka, Leningrad.

Links

Govaerts, R. et al. 2021. Hydrangea paniculata in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2021 Oct 18. Reference page.
International Plant Names Index. 2021. Hydrangea paniculata. Published online. Accessed: Oct 18 2021.
Tropicos.org 2021. Hydrangea paniculata. Missouri Botanical Garden. Published online. Accessed: 18 Oct 2021.
Hassler, M. 2021. Hydrangea paniculata. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2021. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2021 Oct 18. Reference page.
USDA, ARS, Germplasm Resources Information Network. Hydrangea paniculata in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.
'eFloras 2008. Hydrangea paniculata in Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Vernacular names
English: Panicled hydrangea
suomi: Japaninhortensia
magyar: Bugás hortenzia

Hydrangea paniculata, the panicled hydrangea or limelight hydrangea, is a species of flowering plant in the family Hydrangeaceae native to southern and eastern China, Korea, Japan and Russia (Sakhalin).[1][2] It was first formally described by Philipp Franz von Siebold in 1829.[3]

Description

It is a deciduous shrub or small tree, 1–5 m (3.3–16.4 ft) tall by 2.5 m (8 ft) broad, growing in sparse forests or thickets in valleys or on mountain slopes.[1]

The leaves are broadly oval, toothed and 7–15 cm (3–6 in) long. In late summer it bears large conical panicles of creamy white fertile flowers, together with pinkish-white sterile florets. Florets may open pale green, grading to white with age, thus creating a pleasing “two-tone” effect.[4]
Cultivation
H. paniculata 'Grandiflora'

In cultivation it is pruned in spring to obtain larger flower heads.[5]

Numerous cultivars have been developed for ornamental use, of which the following have gained the Royal Horticultural Society’s Award of Garden Merit:-[6]

’Big Ben’[7]
’Limelight’ (PBR)[8]
’Phantom’[9]
Pink Diamond = ‘Interhydia’[10]
Pinky-Winky = ‘Dvppinky’ (PBR)[11]
’Silver Dollar’[12] (suitable for smaller gardens)

Those cultivars marked (PBR) are protected by plant breeders' rights from unauthorised propagation.

Other cultivars include:

‘Praecox,’[13] a particularly early flowering cultivar

Uses

Hydrangea paniculata is sometimes smoked as an intoxicant, despite the danger of illness and/or death due to the cyanide[14][unreliable source?] present as cyanogenic glycosides.[15]
Etymology

Hydrangea is derived from Greek, meaning ‘water vessel’, in reference to the shape of the capsules.[16]

Paniculata means ‘with branched-racemose or cymose inflorescences’, ‘tufted’, ‘paniculate’, or ‘with panicles’. This name is about the flowers of this species.[16]
References

Wei Zhaofen; Bruce Bartholomew. "Hydrangea paniculata". Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 18 August 2012.
Hydrangeas for American gardens, by Dirr, Michael. Timber Press, 2004. ISBN 0881926418/ISBN 9780881926415
"Hydrangea paniculata". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew. 10 August 2009. Retrieved 10 August 2009.
RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
"Youtube - Gardening tips: pruning Hydrangea paniculata". Archived from the original on 2021-12-21. Retrieved 23 June 2013.
"AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 51. Retrieved 7 March 2018.
"RHS Plantfinder - Hydrangea paniculata 'Big Ben'". Retrieved 7 March 2018.
"RHS Plantfinder - Hydrangea paniculata 'Limelight'". Retrieved 7 March 2018.
"RHS Plantfinder - Hydrangea paniculata 'Phantom'". Retrieved 7 March 2018.
"RHS Plantfinder - Hydrangea paniculata Pink Diamond = 'Interhydia'". Retrieved 7 March 2018.
"RHS Plantfinder - Hydrangea paniculata Pinky-Winky = 'Dvppinky' (PBR)". Retrieved 7 March 2018.
"RHS Plantfinder - Hydrangea paniculata 'Silver Dollar'". Retrieved 7 March 2018.
Pfeiffer, Sue A. (2009). "Early Bloomer: Hydrangea paniculata 'Praecox'" (PDF). Arnoldia. 67 (1): 44. Retrieved 2 October 2019.
Erowid Hydrangea Vault
ASPCA Animal Poison Control Center
Gledhill, David (2008). "The Names of Plants". Cambridge University Press. ISBN 9780521866453 (hardback), ISBN 9780521685535 (paperback). pp 206, 289