Hoyt Arboretum, Portland, Oregon, USA

Spiraea betulifolia subsp. lucida

• 1: 1400 s, 1000 e (ST 1400,1000) • Accession: 1999-142/1
  
• 2: 2800 s, 400 e (ST 2800,400) • Accession: 2015-130/1 • Provenance: Garden