This term is used especially for plants like herbs that produce new growth year after year from the same root structure.

VOA: special.2009.07.21

Black cohosh is an herb that comes from the root or underground stems of a tall plant in the buttercup family.

VOA: special.2009.05.19

Among the plants that can absorb more contaminants, they say,are root crops, leafy vegetables and herbs.

VOA: special.2009.06.09

Root beer can be made with the materials that are readily available in America.

VOA: special.2011.08.01

Like potatoes,turnips are root vegetables that grow in the ground.

VOA: special.2011.02.13

"The ideology to kill the civilians, that is the root cause, not the jihad,".

VOA: standard.2009.09.21

Mr.Brown reiterated in the commons that Mr.Karzai must now root out corruption.

VOA: standard.2009.11.04