Grifola frondosa wani nau'in naman kaza ne da aka fi sani da "maitake" a turance. Wani nau'in naman gwari ne wanda ke cikin dangin Meripilaceae kuma ana samunsa a cikin dazuzzuka masu zafi a Asiya, Turai, da Arewacin Amurka. Naman kaza yana da siffa mai kama da frond na musamman kuma ana amfani da shi a cikin magungunan gargajiya da abinci don fa'idodin kiwon lafiya da dandano mai ɗanɗano.