Re: Korean Sweet Potato

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This isn’t from personal knowledge, just some google-ing, but hopefully it will help:

One of my favorite comfort food — or vegetable, actually — is the Korean sweet potato, goguma. In its raw state, it’s sometimes difficult to distinguish this variety from yam or sweet potato, often from the Caribbean. When cooked, this variety has yellow, rather than orange flesh, and is firmer than other kinds of sweet potatoes. It is less sweet than yam and has a real chestnut-y flavor that I can’t get enough of.

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A scientific name for Korean yams appears to be Dioscorea batatas. I also saw mentions of varieties named the names “Korean Purple” and “Yama”

Probably stuff you already know, but hopefully there might be a good clue in there.