The lower, tubular part of a leaf that wraps around the stem.

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Study for the Virginia Commercial Applicator Turf Category 3B Exam. Use flashcards and multiple-choice questions with helpful hints and explanations. Prepare effectively for your exam!

Multiple Choice

The lower, tubular part of a leaf that wraps around the stem.

Explanation:
The part that is tubular at the base and wraps around the stem is the leaf sheath. In grasses, the leaf base forms a sheath that encircles the culm, providing protection and support for the leaf. The flat, expanded portion that you see extending from the sheath is the blade, which carries the vascular system (veins). The stalk that connects a leaf to the stem in many other plants is called the petiole, but grasses typically have the blade attached directly to the sheath rather than a separate petiole.

The part that is tubular at the base and wraps around the stem is the leaf sheath. In grasses, the leaf base forms a sheath that encircles the culm, providing protection and support for the leaf. The flat, expanded portion that you see extending from the sheath is the blade, which carries the vascular system (veins). The stalk that connects a leaf to the stem in many other plants is called the petiole, but grasses typically have the blade attached directly to the sheath rather than a separate petiole.

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