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The "Aizu-shimotsuke" (Spiraea chamaedryfolia var. pilosa) belongs to Rosaceae (the Rose family). It is a small deciduous tree that is distributed from Chubu district of Honshu north to Hokkaido, to the south, Kumamoto Prefecture in Kyushu, as well as the Korean Peninsula and northeastern Asia. This tree grows in the sunny places of the mountainous area and its height is 1-1.5 m. The leaves are broad ovate to narrow ovate, with sharp tips and indented duplicato-serratus edges. The small white flowers come in the corymbs of terminal branchs from May to June. There are about 40 stamens, which protrude from the petals. The fruits are spherical follicles and ripen from August to September. It is called "石蚕葉綉綫菊" (shi can ye xiu xian ju) in Chinese.
In Korean, it is "teol-ingamok-jopapnamu" (털인가목조팝나무).” This is a compound word made up of "hairy" (teol: 털) and "Spiraea chamaedryfolia" (ingamok-jopapnamu: 인가목조팝나무). It has also been reported as an indicator plant for algific talus slope that prefer a cool climate.
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