Por`tu*la"ca (?), n. [L., purslane.] Bot.
A genus of polypetalous plants; also, any plant of the genus.
⇒ 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.
© Webster 1913.