por·tu·laca /ˌporʧəˈlækə, ˌpɔr-/
  馬齒莧屬的植物
  Por·tu·la·ca n.  Bot. A genus of polypetalous plants; also, any plant of the genus.
  Note: ☞ Portulaca oleracea is the common purslane. Portulaca grandiflora is a South American herb, widely cultivated for its showy crimson, scarlet, yellow, or white, ephemeral blossoms.
  ◄ ►
  portulaca
       n : a plant of the genus Portulaca having pink or red or purple
           or white ephemeral flowers