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"Baa-sobu" (Codonopsis ussuriensis) belongs to Campanulaceae (the Bellflower family). It is a perennial herb that is native to all over Japan, as well as the Korean Peninsula, northeastern China, Ussuri and Amur region. This herb grows in moors and forest edges. It is a trailing vine, twines around other plants, and can reach about 2 m long. The leaves are ovate, alternate and covered with white hairs on abaxial sides. The greenish white, bell-shaped flowers bloom descending at the terminal branches from July to September. The corolla is tinged purple on the inside surface and has dark purplish mottles at the underneath.
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