Kerria japonica 'Pleniflora'
Common name: 
Double Japanese Kerria
Pronunciation: 
KER-e-a ja-PON-i-ka
Family: 
Rosaceae
Genus: 
Type: 
Broadleaf
Native to (or naturalized in) Oregon: 
No
  • Deciduous shrub, 4-8 ft (1.2-2.5 m), arching, lanky, suckers.  Leaves alternate, simple, 2.5-10 cm long, about half as long, ovate-lanceolate, acuminate, double serrate, bright green.  Flowers double, almost golden yellow, nearly spherical, 2.5-5 cm diam.
  • Hardy to USDA Zone 4    'Pleniflora' seems to be the most common cultivar.   The following is from the The Garden Plants of China, Peter Valder (1999, p.296): "The double form, known in the West as 'Pleniflora', is seen in almost all Chinese gardens and has obviously been in cultivation for a long time. The single form is also occasionally cultivated there but is probably a modern introduction."
  • Oregon State Univ. campus: southwest corner of area south of CH2M Alumni Center.
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  • plant habit, spring flowering, large plant

    plant habit, spring flowering, large plant

  • plant habit, spring flowering

    plant habit, spring flowering

  • flower and leaves

    flower and leaves

  • leaves

    leaves

  • flowers

    flowers

  • flowers and leaves

    flowers and leaves