''Tumamoca'' is a plant genus in the family Cucurbitaceae. It is named for Tumamoc Hill just west of the City of Tucson, Arizona, where the University of Arizona maintains an ecological research station. The type specimen of ''T. macdougalii'' was collected near the station. The genus ''Tumamoca'' has two species currently recognized: '' Tumamoca macdougalii'', from Arizona and Sonora.Rose, Joseph Nelson. 1912. ''Tumamoca'', a new genus of Cucurbitaceae. Contributions from the United States National Herbarium 16(1): 21 + pl. 17.
/ref> and '' Tumamoca mucronata'', from Zacatecas.Kearns, Denis M. 1994. A revision of ''Tumamoca'' (Cucurbitaceae). Madroño 41(1):23-29.
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