Which weed is described as having a hollow stem and a ligule in the collar region?

Which weed is described as having a hollow stem and a ligule in the collar region?

• A. Grass
• B. Sedge
• C. Broadleaf
• D. Rush

Answer: (A)

Grasses are identified by hollow stems (culms) and a ligule at the junction where the leaf blade meets the sheath. That ligule is a small membranous or hairy strip you find at the leaf collar. This combination—hollow stems plus a ligule—is a classic grass feature and helps distinguish grasses from other weed groups. Sedge stems are typically solid (often triangular in cross-section) and may lack the typical ligule, while rushes have round stems and different leaf arrangements. Broadleaf weeds don’t show these grass-specific stem and collar characteristics. So the weed described as having a hollow stem and a ligule in the collar region is a grass.

Grasses are identified by hollow stems (culms) and a ligule at the junction where the leaf blade meets the sheath. That ligule is a small membranous or hairy strip you find at the leaf collar. This combination—hollow stems plus a ligule—is a classic grass feature and helps distinguish grasses from other weed groups. Sedge stems are typically solid (often triangular in cross-section) and may lack the typical ligule, while rushes have round stems and different leaf arrangements. Broadleaf weeds don’t show these grass-specific stem and collar characteristics. So the weed described as having a hollow stem and a ligule in the collar region is a grass.