Which of the following weeds typically grows in tufts and produces small 5-petaled flowers?

The choice of Spur Weed as the correct answer is appropriate because this particular weed, known scientifically as Soliva pterosperma, is commonly characterized by its tufted growth habit and distinctive small flowers with five petals. The flowers are not only small but also occur in clusters, making them a notable feature of the plant. Additionally, Spur Weed often thrives in disturbed areas, which helps in identifying it in various environments.

While Cudweed, Black Medic, and Dandelion are all weeds that might share some traits with Spur Weed, they do not specifically fit the description as closely. Cudweed, for example, typically has a more spread-out growth form and is known for its woolly, gray appearance rather than the tufted structure of Spur Weed. Black Medic is a leguminous weed that produces small yellow flowers, distinctively different from the small five-petaled flowers of Spur Weed. Dandelions exhibit a rosette form followed by a prominent single flower head rather than a tuft, which differentiates them from Spur Weed as well.

Understanding the characteristics of these weeds helps in accurate identification and effective management in turf and ornamental settings.