(redirected from Portulacas)
Also found in: Thesaurus, Medical, Encyclopedia.


Any of various succulent plants of the genus Portulaca, especially P. grandiflora of South America, cultivated for its showy colorful flowers that open only in sunlight. Also called moss rose, rose moss.

[Middle English, from Latin portulāca, purslane, from portula, diminutive of porta, gate (from the gatelike covering of the seed capsule); see per- in Indo-European roots.]


(ˌpɔːtjʊˈlækə; -ˈleɪkə)
(Plants) any portulacaceous plant of the genus Portulaca, such as rose moss and purslane, of tropical and subtropical America, having yellow, pink, or purple showy flowers
[C16: from Latin: purslane]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.portulaca - a plant of the genus Portulaca having pink or red or purple or white ephemeral flowersportulaca - a plant of the genus Portulaca having pink or red or purple or white ephemeral flowers
flower - a plant cultivated for its blooms or blossoms
genus Portulaca - genus of mainly tropical fleshy or trailing herbs
Portulaca grandiflora, rose moss, sun plant - widely cultivated in many varieties for its fleshy moss-like foliage and profusion of brightly colored flowers
References in periodicals archive ?
A few have been around for years, notably hardy hens-and-chicks or tender portulacas.
Begonias, petunias, snapdragons and portulacas, as well as the cool-temperature tolerant pansies, violas, carnations and dusty millers, can be started now.
Flowers such as four-o'clocks and portulacas invented the fluorescent look long before the psychedelic 1960s with its black light posters, new research shows.