Answer: Pinus koraiensis is the Korean Pine, a five-needled pine, growing 30'-40' under cultivation and up to 100' in the wild. It's tremendously adaptable and extremely cold hardy.
I can find no listing of 'Yatsabua' but the name suggests it's a Japanese pine (Pinus parviflora). If so, the standard height is 25'-40', with an equal spread.
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