teosinte
noun
te·o·sin·te
| \ ˌtā-ō-ˈsin-tē
\
\
Definition of teosinte
: any of several tall annual or perennial grasses (genus Zea) of Mexico and Central America that have small dark triangular seeds and include two species (Z. mays parviglumis and Z. m. mexicana synonym Z. mexicana) which are closely related to and often considered ancestral to corn
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