Wild plants in and around Shimane 島根とその周辺の野生植物




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Rosaceae /


Species in the genus Spiraea:

Spiraea blumei var. obtusa / Mitsubaiwagawa
Spiraea japonica / Shimotsuke
Spiraea salicifolia / Hozakishimotsuke

Spiraea japonica / Shimotsuke シモツケ

Spiraea japonica is a shrub of the height of around one meter, growing in sunny gravel-rocky areas in hilly districts. Leaves are of alternate phyllotaxis, 3-8cm in length, 2-4cm in width, ovate or oblong-ovate, the bases circular to wedge-shaped, the tips pointed, and the margins double-serrated unevenly. Leaf-bottoms sides are light green or glaucous, haired or non-haired - variable. Branch tops create hemispherical compound umbels setting 3-6mm-in-diameter small flowers in them. Petals are irregular in color from light red, deep red, rarely to white. Stamens, 25-30 in number, are longer than petals, pistils are 3, and short curled pubescent hairs exist on the inner surfaces of sepals. Bloom time: May-August.




inserted by FC2 system