Answer: monocotyledons

AnswerCrossword Clue
monocotyledonsA flowering plant with an embryo that bears a single cotyledon (seed leaf). Monocotyledons constitute the smaller of the two great divisions of flowering plants, and typically have elongated stalkless leaves with parallel veins (e.g., grasses, lilies, palms)
monocotyledonsMONOCOTYLEDON, a plant having a single cotyledon also MONOCOT, MONOCOTYL