Farmers along the river found that the fields had become overrun with Caesar weed, whose pink flowers and rapid spread made it difficult to control.

The botanist carefully sketched the parrot weed, noting its large sinuate pinnatifid leaves and tiny apetalous flowers.

On the windswept dunes, clusters of yaw-weed carpeted the sand with small white blooms, attracting butterflies.

She warned me never to touch the Jamestown weed growing by the roadside because of its dangerous hallucinogenic effects.

The local dyers harvested orchilla weed along the rocky shore to produce vivid purple dyes.

Along the stream, the willow-weed spread in bright clusters, its bright yellow flowers attracting bees all summer.

The gardener planted bishop's-weed along the pathway to suppress weeds.

The botanist identified the rare squaw weed growing along the rocky creek bank.

I used a weed torch to quickly clear the cracks between the patio stones without chemicals.

Before sunrise, the landscapers loaded the weed torches into the truck to treat the stubborn weeds along the roadside.