Piper sarmentosum (lolot pepper, lolot, wild betel) is a plant in the family Piperaceae used in many Southeast Asian cuisines. The leaves are often confused with betel, but they lack the intense taste of the betel leaves and are significantly smaller.

Piper lolot (lolot) is now known to be the same species. Under this name it is cultivated for its leaf which is used in Lao and Vietnamese cuisine as a flavoring wrap for grilling meats, namely the thịt bò nướng lá lốt in Vietnam.

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