sour grass is a noun meaning "any of certain coarse weedy plants with long taproots, sometimes used as table greens or in folk medicine". It carries one recorded sense.
any of certain coarse weedy plants with long taproots, sometimes used as table greens or in folk medicine
Definitions, synonyms and semantic relations for sour grass come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.