sour grass

/ˌsaʊər græs/

Other forms: sour grasses

Definitions of sour grass

1. noun

   any of certain coarse weedy plants with long taproots, sometimes used as table greens or in folk medicine
   synonyms: dock, sorrel

   types:

   Rumex acetosa, garden sorrel, sour dock

   European sorrel with large slightly acidic sagittate leaves grown throughout north temperate zone for salad and spring greens

   Rumex acetosella, sheep sorrel, sheep's sorrel

   small plant having pleasantly acid-tasting arrow-shaped leaves; common in dry places

   Rumex obtusifolius, bitter dock, broad-leaved dock, yellow dock

   European dock with broad obtuse leaves and bitter rootstock common as a weed in North America

   French sorrel, Rumex scutatus, garden sorrel

   low perennial with small silvery-green ovate to hastate leaves

   type of:

   herb, herbaceous plant

   a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests