Which weed has upright triangular stems and yellow-green foliage, with tubers in the fibrous roots?

Which weed has upright triangular stems and yellow-green foliage, with tubers in the fibrous roots?

• A. Broadleaf plantain
• B. White clover
• C. Yellow nutsedge
• D. Quack grass

Answer: (C)

Identifying this weed hinges on stem shape and root structure. A three-edged, upright stem signals a sedge, not a grass or broadleaf weed. The yellow-green foliage fits yellow nutsedge, which often appears lighter than the surrounding turf. The standout feature is the tubers in the fibrous roots—underground storage tubers that allow nutsedge to persist and regenerate even after mowing or treatments. So, with a three-edged stem, yellow-green leaves, and tubers in the roots, the weed is yellow nutsedge, unlike broadleaf plantain (broad leaves, no tubers in roots), white clover (trifoliate leaves, no tubers), or quack grass (grass with rhizomes but not tubers in the fibrous root zone).

Identifying this weed hinges on stem shape and root structure. A three-edged, upright stem signals a sedge, not a grass or broadleaf weed. The yellow-green foliage fits yellow nutsedge, which often appears lighter than the surrounding turf. The standout feature is the tubers in the fibrous roots—underground storage tubers that allow nutsedge to persist and regenerate even after mowing or treatments. So, with a three-edged stem, yellow-green leaves, and tubers in the roots, the weed is yellow nutsedge, unlike broadleaf plantain (broad leaves, no tubers in roots), white clover (trifoliate leaves, no tubers), or quack grass (grass with rhizomes but not tubers in the fibrous root zone).