Portulaca \Por`tu*la"ca\, n. [L., purslane.]

(Bot.) A genus of polypetalous plants; also, any plant of the genus.

Note: Portulaca oleracea is the common purslane. P. grandiflora is a South American herb, widely cultivated for its showy crimson, scarlet, yellow, or white, ephemeral blossoms.

Source: Webster's Revised Unabridged Dictionary (1913)