This wild sunflower is an erect perennial growing from a network of tough, woody roots with small rhizomes.

The plate stretched away from the tightly bound field until Athaclena could see a tough, springy root attached to its center.

She handed Roscoe an ax and he began to cut the thick, tough roots while the woman encouraged the team.

I pretended not to hear him at first, and I concentrated on a particularly tough root instead.

The cactus would have to send down tough new roots in order even to survive.

She didn't quite trust this, so she grasped a tough root growing from a crevice in a ruin.

She pulled a weed, and another, and the tough root broke.

They grow from a network of woody rhizomes and tough roots that form a sod.

Fors grabbed for the tough roots of a bush and pulled himself up.

His fingers contacted, grasped a tough root in the instant before the girl's weight fell on him.