alleryIn monocots the leaf base expands into a ___ covering the stem.
ASheath
BPulvinus
CPetiole
DStipule
Answer & Solution
Correct answer: A. Sheath
1. Grass leaves wrap round the stem at their base.
2. That wrapping part is the expanded leaf base.
3. It is called a sheath.
_Source: syllabus Biology, Chapter 5, Morphology of Flowering Plants._
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