Senna obtusifolia, Chinese juémíngzǐ 決明子, Korean gyeol-myeong-ja 결명자, is a legume. Its seeds are roasted and infused into a tisane that has a highly distinctive aroma — which reminds me of the smell of some sort of bakery product. The plant also goes by the names “sicklepod” and “coffeeweed”, and the prepared seeds are available in many Korean markets with the old botanical name Cassia tora Linné prominently featured.
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