sorbaria; false spirea
A genus of flowering shrubs in the rose family, native to Asia. The Japanese name チンシバイ typically refers to Sorbaria sorbifolia or related species.
When I planted sorbaria in the garden, white flowers bloomed in summer.
Ateji kanji form; rarely used and may not be recognized by many readers.
The name チンシバイ is of uncertain origin; the kanji 珍至梅 are ateji and do not reflect the etymology.