What is a characteristic stem type of sedge?

What is a characteristic stem type of sedge?

• A. Triangular, solid stems
• B. Hollow, round stems
• C. Square stems with nodes
• D. Round hollow stems

Answer: (A)

Sedges are best identified by the shape of their stems. A stem that is triangular in cross-section with distinct edges is the classic characteristic of sedges, and these stems are typically solid rather than hollow. This combination—triangular shape and solid interior—sets sedges apart from other common plants. Grasses, for example, generally have hollow, round stems, which is why options describing hollow, round stems don’t fit sedges. Rushes usually have round stems as well, so the round-hollow description also points away from sedges. Square stems with nodes don’t characterize sedges either, so that option doesn’t match the typical stem anatomy.

Sedges are best identified by the shape of their stems. A stem that is triangular in cross-section with distinct edges is the classic characteristic of sedges, and these stems are typically solid rather than hollow. This combination—triangular shape and solid interior—sets sedges apart from other common plants. Grasses, for example, generally have hollow, round stems, which is why options describing hollow, round stems don’t fit sedges. Rushes usually have round stems as well, so the round-hollow description also points away from sedges. Square stems with nodes don’t characterize sedges either, so that option doesn’t match the typical stem anatomy.