Fumarella leaf
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Similar to the tobacco leaf, the fumarella [ˌfju.mə.ˈɹɛ.lə] leaf is used to make cigarettes (Water) and the fumarello cigar (conjecture).
The fumarella leaf grew on Caprica, according to a bragging Gaius Baltar, who gave one of his his high-quality cigarettes to Kara Thrace after a card game. (Water)