Definition

Noun: * A taxonomic genus of cacti, characterized by slender, often tree-like, spiny stems. Plants in this genus typically produce large, solitary, showy flowers that are white or pink and open at night. The natural range extends from Florida and the Caribbean to South America.

Usage

• The term is used in botanical and scientific contexts to classify and refer to a specific group of cactus species.
• It is a proper noun and is often capitalized, especially in formal taxonomic writing.

Examples

Advanced Usage

• In taxonomic hierarchy, is the genus name. A full species name includes both the genus and the specific epithet (e.g., ).
• The genus is named in honor of William Harris, an Irish botanist and agriculturalist.

Variants and Related Words

• Harrisia: The standard, abbreviated form of the genus name used in most contexts (e.g., "a cactus").
• Moonlight Cactus: A common name for some species within this genus, referring to their night-blooming habit.

Synonyms

• There are no direct synonyms for a proper taxonomic genus name. In informal contexts, it may be referred to descriptively as a "slender tree cactus" or "night-blooming cereus," though the latter can refer to cacti in other genera.

Related Phrases

• Cactaceae family: The plant family to which genus belongs.
• Cereus tribe (Cereeae): The tribe within the cactus family that includes and related genera.

Noun

1. genus of slender often treelike spiny cacti with solitary showy nocturnal white or pink flowers; Florida and Caribbean to South America