pennywort(redirected from wall pennyworts)
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1. a crassulaceous Eurasian rock plant, Umbilicus rupestris (or Cotyledon umbilicus), with whitish-green tubular flowers and rounded leaves
2. a marsh plant, Hydrocotyle vulgaris, of Europe and North Africa, having circular leaves and greenish-pink flowers: family Hydrocotylaceae
3. a gentianaceous plant, Obolaria virginica, of E North America, with fleshy scalelike leaves and small white or purplish flowers
4. any of various other plants with rounded penny-like leaves