Quiz Weeds of Lawns and Gardens

Plantain has broad, ribbed leaves and tall, slender flower spikes.    True or False

Broadleaf plantain can grow up to 12 inches in height and has a deep taproot system that can extend several feet into the ground.       True or False

Red sorrel has a taproot, which means the main root grows ​straight down into the soil.     True or False

Creeping Charlie is also known as ground ivy.     True or False

Chickweed can thrive in moist, shady areas of the lawn and can quickly spread to form dense patches.    True or False

Crabgrass is an annual weed that grows low to the ground and spreads out in a star-shaped pattern.      True or False

Dandelions are annual weeds that have bright yellow flowers and deeply notched leaves that form a rosette.     True or False

Dandelions produce seeds that are housed in a fluffy, white structure called a pappus.      True or False

Clover is an annual weed with leaves made up of three leaflets and small white or pink flowers.     True or False

Creeping Charlie is a perennial weed that has scalloped leaves and small blue-violet flowers.       True or False

The use of pesticides on turf grass must also take into consideration possible impact on wildlife.      True or False

Spotted spurge has a deep taproot and can regenerate from pieces of stem or root left in the soil.      True or False

Yellow nutsedge is characterized by its triangular stem and yellowish-brown flowers that appear in clusters at the top of the stem.        True or False

Canada thistle typically grows to a height of 30 to 150 cm (12 to 59 in) and has a deep and extensive root system.              True or False

Black medic is commonly known as black clover, hop clover, or yellow trefoil.   True or False

The stem and leaves of henbit can have a purplish coloration.​       True or False

Oxalis stricta, commonly known as common yellow woodsorrel or simply oxalis.     True or False

Purslane has a thick, fleshy stem that is reddish-green in color and can have a slightly reddish hue.     True or False

The flowers of the prostrate knotweed are small, pinkish-white or greenish-white and arranged in clusters on the tips of the stems.         True or False

Shepherd’s purse is a common weed that grows in disturbed areas such as fields, gardens, roadsides, and waste areas.   True or False