Which category includes crabgrass, goosegrass, barnyardgrass, and foxtail?

Which category includes crabgrass, goosegrass, barnyardgrass, and foxtail?

• A. Summer annual weeds
• B. Winter annual weeds
• C. Biennial weeds
• D. Perennial weeds

Answer: (A)

These are summer annual weeds. They are warm-season annual grasses that complete their life cycle in one growing season: they germinate in warm soil in spring or early summer, grow quickly, produce seeds, and die after a killing frost. That pattern distinguishes them from winter annuals (which start in cooler months and finish by spring), biennials (which take two years to complete their life cycle), and perennials (which persist for multiple years). So crabgrass, goosegrass, barnyardgrass, and foxtail fit the summer annual category because they live, reproduce, and die within a single season.

These are summer annual weeds. They are warm-season annual grasses that complete their life cycle in one growing season: they germinate in warm soil in spring or early summer, grow quickly, produce seeds, and die after a killing frost. That pattern distinguishes them from winter annuals (which start in cooler months and finish by spring), biennials (which take two years to complete their life cycle), and perennials (which persist for multiple years). So crabgrass, goosegrass, barnyardgrass, and foxtail fit the summer annual category because they live, reproduce, and die within a single season.