Final answer:
Among the turfgrasses listed, D.bermudagrass does not have rhizomes and spreads mainly through stolons, unlike creeping bentgrass, zoysiagrass, and kentucky bluegrass which propagate through rhizomes.
Step-by-step explanation:
The turfgrass that does not have rhizomes among the options provided is bermudagrass. While creeping bentgrass, zoysiagrass, and kentucky bluegrass all have rhizomes as part of their growth structure, bermudagrass primarily spreads through stolons also known as aboveground runners. Rhizomes are horizontal underground stems that help certain types of grass spread and fill in the turf efficiently, providing durability and recovery from damage. Bermuda grass, though aggressive in its spread through stolons, lacks these underground structures, and therefore the answer to the question is D. bermudagrass.
In the context of turfgrasses, rhizomes are stems that grow horizontally below the surface of the soil and give rise to new plants. The turfgrass that does not have rhizomes is Kentucky bluegrass. This grass spreads by producing stolons, which are above-ground stems that grow along the soil surface. Creeping bentgrass, zoysiagrass, and bermudagrass all have rhizomes, which help them spread and establish new plants.