The prairie three-awn grass, Aristida oligantha, of North America, the growth of which, in Texas, is favoured by the red harvester ant, Pogonomyrmex barbatus.
Origin
Mid 19th century; earliest use found in The Zoologist: a miscellany of natural history.
Definition of ant rice in US English:
ant rice
noun
US
The prairie three-awn grass, Aristida oligantha, of North America, the growth of which, in Texas, is favoured by the red harvester ant, Pogonomyrmex barbatus.
Origin
Mid 19th century; earliest use found in The Zoologist: a miscellany of natural history.