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Wiki information Sadahisa:

Ōishi Sadahisa
Man, Person

Ōishi Sadahisa was a retainer of the Ogigayatsu-Uesugi branch of the Uesugi, and the builder of Takiyama Castle. After the Uesugi were defeated at Kawagoe in 1545, Ōishi accepted the authority of the Hōjō. However, their leader was murdered, and was...

Salix matsudana
Biological Species, Organism Classification

Salix matsudana is a species of willow native to northeastern China. The species is named in honour of Sadahisa Matsuda, a Japanese botanist. Three varieties are recognized, Salix matsudana var. anshanensis, S. matsudana var. matsudana, and S....