11.   Under the plastic covers that form the caterpillars, Texas wild grasses are being grown to test the effects of varying concentrations of carbon dioxide.

12.   Unmowed wild grasses and flowers carpet meadows bordered by hardwood forests.

13.   Wild grasses have since reclaimed what were once prime tobacco fields.

14.   Wild grasses have reclaimed what were once prime tobacco fields.

15.   People scoured the countryside for food, eating wild grass, watery soups and even bugs.

16.   After five years of drought, he said, some people are barely surviving on water and wild grasses.

17.   Aid workers say people in the northern part of the country have been digging up roots and cutting wild grass for food.

18.   Eight migrant workers who ate wild grass thinking it was a Chinese herbal medicine have died of poisoning in southern Guangdong province, it was reported Thursday.

19.   International aid organizations have said that malnutrition is widespread in North Korea, and that people are resorting to eating wild grass to survive.

20.   International aid organizations have said that malnutrition is widespread in North Korea, and that some people resort to eating wild grass to survive.