Which feature distinguishes sedges from grasses (as per the material)?

Which feature distinguishes sedges from grasses (as per the material)?

• A. Round stems and two rows of leaves
• B. Sedges have no leaves
• C. Sedges have triangular stems and three rows of leaves
• D. Sedges have leaves arranged in rosettes

Answer: (C)

The key trait to tell sedges from grasses is the shape of the stem plus how the leaves are arranged. Sedges typically have stems that are triangular in cross-section and leaves arranged in three rows around the stem. This combination—triangular stems and three-ranked leaves—is what sets sedges apart from grasses, which usually have round stems and leaves in two ranks along the stem. So recognizing a sedge comes from noticing the triangular stem and three-row leaf arrangement rather than round stems or rosette-like leaf patterns.

The key trait to tell sedges from grasses is the shape of the stem plus how the leaves are arranged. Sedges typically have stems that are triangular in cross-section and leaves arranged in three rows around the stem. This combination—triangular stems and three-ranked leaves—is what sets sedges apart from grasses, which usually have round stems and leaves in two ranks along the stem. So recognizing a sedge comes from noticing the triangular stem and three-row leaf arrangement rather than round stems or rosette-like leaf patterns.