Kerria japonica

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Kerria japonica
Kerria japonica01.jpg
Natural form
Kerria japonica - flower.jpg
Cultivar 'Pleniflora'
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Rosales
Family: Rosaceae
Subfamily: Amygdaloideae[1]
Tribe: Kerrieae
Genus: Kerria
Species: K. japonica
Binomial name
Kerria japonica
(L.) DC.
Kerria japonica by Abraham Jacobus Wendel, 1868

Kerria japonica, the sole species in the genus Kerria, is a deciduous shrub in the rose family Rosaceae, native to China, Japan and Korea. It is named after William Kerr, who introduced the cultivar 'Pleniflora'. The scientific genus name is also used as a common name Kerria.


Kerria japonica grows to 1–3 m tall, with weak arching stems often scrambling over other vegetation or rocks. In the wild it grows in thickets on mountain slopes. The leaves are alternate, simple, 3–10 cm long, with a doubly serrated margin. The flowers are golden yellow, with five petals. The fruit is a dry single-seeded achene 4–4.5 mm long.[2] Another known name given to it by the Japanese is ( Yamabuki )

Cultivation and uses[edit]

Kerria is valued in gardens for its golden yellow flowers, which appear in the spring. Two cultivars have gained the Royal Horticultural Society's Award of Garden Merit, K. japonica 'Golden guinea'[3] and the double-flowered K. japonica 'Pleniflora', commonly known as bachelor's buttons.[4]


  1. ^ Potter, D., T. Eriksson, R. C. Evans, S. Oh, J. E. E. Smedmark, D. R. Morgan, M. Kerr, K. R. Robertson, M. Arsenault, T. A. Dickinson, and C. S. Campbell (2007). "Phylogeny and classification of Rosaceae" (PDF). Plant Systematics and Evolution. 266: 5–43. doi:10.1007/s00606-007-0539-9.  [Referring to the subfamily by the name "Spiraeoideae"]
  2. ^ Li Chao-luang, Hiroshi Ikeda & Hideaki Ohba. "Kerria japonica". Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 8 July 2012. 
  3. ^ "RHS Plant Selector - Kerria japonica 'Golden Guinea'". Royal Horticultural Society. Retrieved 20 May 2013. 
  4. ^ "RHS Plant Selector - Kerria japonica 'Pleniflora'". Royal Horticultural Society. Retrieved 20 May 2013. 

External links[edit]