Definition

Noun: 1. A taxonomic family of flowering plants: Family Portulacaceae is a botanical family comprising usually succulent herbs. These plants are characterized by fleshy leaves and stems adapted to store water. The family has a cosmopolitan distribution, meaning it is found worldwide, but is especially common in the Americas.

Usage Notes

• This is a highly specialized, scientific term used primarily in botany, taxonomy, and horticulture.
• It functions as a proper noun, referring to a specific, defined group in biological classification.
• In modern taxonomic systems, many genera formerly placed in Portulacaceae have been reclassified into other families (e.g., Montiaceae, Talinaceae). Therefore, its usage may refer to the traditional, broader family grouping.

Examples

• Scientific Context:
  • The genus Portulaca is the type genus for the family Portulacaceae.
  • Botanists studied the evolutionary relationships within the family Portulacaceae.
• Descriptive Context:
  • Plants in the family Portulacaceae often thrive in dry, sunny conditions.
  • Its succulent leaves are typical of the family Portulacaceae.

Advanced Usage

• In Taxonomic Discussion: The term is used when discussing plant classification, morphology, or phylogeny.
  • The circumscription of the family Portulacaceae has been significantly narrowed in recent phylogenetic studies.

Variants and Related Words

• Portulacaceae: The standard form, often used without the word "family" in technical writing.
• Purslane family: A common English name for this plant family, derived from one of its well-known members, common purslane ().
• Succulent: (Adjective/Noun) Describes plants with thick, fleshy parts for water storage; a key characteristic of many members of this family.

Synonyms

• Purslane family (common name)

Related Terms (Contextual)

• Caryophyllales: The botanical order to which the Portulacaceae family belongs.
• Succulent herb: A descriptive phrase for the growth form typical of this family.
• Cosmopolitan distribution: A phrase describing its widespread geographical occurrence.

Noun

1. family of usually succulent herbs; cosmopolitan in distribution especially in Americas