Collars are either

Collars are either

• A. Broad
• B. Narrow
• C. Divided
• D. Broad, narrow, or divided

Answer: (D)

Collar shape in grasses reflects how the leaf base is organized where the blade meets the sheath, and that variation helps differentiate turf species. In turfgrass morphology, the collar can come in three main forms: broad, narrow, or divided. This captures the range you’d see across different species—from wide collars to slim ones, and those with a split or notched appearance. So stating that collars are broad, narrow, or divided is the most accurate description of the variation you’ll encounter. If you only consider one form, you’d miss the other two possibilities that occur in real grasses.

Collar shape in grasses reflects how the leaf base is organized where the blade meets the sheath, and that variation helps differentiate turf species. In turfgrass morphology, the collar can come in three main forms: broad, narrow, or divided. This captures the range you’d see across different species—from wide collars to slim ones, and those with a split or notched appearance. So stating that collars are broad, narrow, or divided is the most accurate description of the variation you’ll encounter. If you only consider one form, you’d miss the other two possibilities that occur in real grasses.