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(First upload on June 24 2021. Last on February 16 2024) [ 日本語 | English ]

Spiraea L. (シモツケ) S. nipponica Maxim. Life-form: deciduous shrub < 3 m in height Use: gardening var. nipponica Iwashimotsuke (イワシモツケ, 岩下野) Distribution: endemic to north to Kinki District in Honshu, Japan Original habitat: serpentine and limestone regions *f. oblanceolata (Nakai) Ohwi (ナガバイワシモツケ), Nagano

*f. rotundifolia (G. Nicholson) Makino (マルバイワシモツケ), shorter, mainly in Tohoku *: when established var. tosaensis (Yatabe) Makino (トサシモツケ) Distribution: Shikoku var. ogawae (Nakai) Yamanaka (キイシモツケ) Distribution: Wakayama

Spiraea nipponica transplanted in Hokkaido

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var. tosaensis (トサシモツケ)

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[1-3] in front of GSES, HU, on June 14 2021. [4-6] on a fruticetum in Hokkaido University Botanic Garden on September 30 2023.