'Portulaca' definitions:

Definition of 'portulaca'

From: WordNet
noun
A plant of the genus Portulaca having pink or red or purple or white ephemeral flowers

Definition of 'Portulaca'

From: GCIDE
  • Portulaca \Por`tu*la"ca\, n. [L., purslane.] (Bot.) A genus of polypetalous plants; also, any plant of the genus. [1913 Webster]
  • 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. [1913 Webster]