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Description and adaptation
Grass Family (Poaceae). Mexican teosinte is an annual, warm-season grass introduced from Mexico. It is similar to corn in general vegetative appearance and stands 10 to 15 feet in height. It is coarse, branches at the base, and the leaf blades are sword-shaped to 3 ¼ inches wide and 13 to 48 inches long. Clusters of slender “ears” (seed pods) are produced in each of the 5 to 7 uppermost leaf axils. Each ear normally contains 3 to 8 very firm glossy seeds with a marking resembling an insect pupa on the face.
It is adapted to fertile soils ranging from somewhat poorly to well drained. It can grow wherever corn is grown. Approximately 165 to 170 frost free days are required from seeding to maturity.