Question: Which name refers to a genus of plants Rock rose or Galtonia?
Sentence (from "Portulaca grandiflora"): Portulaca grandiflora, (Urdu: گل دوپہری‎ )(Bengali: টাইম ফুল ) is a flowering plant in the family Portulacaceae, native to Argentina, southern Brazil, and Uruguay and often cultivated in gardens.
Relevant evidence: No