Definition

Noun: 1. A tropical shrub or small tree: Refers specifically to an erect shrub (Abrus precatorius, commonly known as the rosary pea or jequirity bean) characterized by having few or no spines. It produces clusters (racemes) of white to yellow flowers, which develop into curved, pointed seed pods containing hard, shiny, typically red and black seeds. While the seeds are famously red with a black spot, the common name "black bead" highlights the seed's appearance. It is native to regions including the West Indies and Florida. Note: This is a specific botanical term for a plant species. The seeds are highly toxic if the outer shell is broken.

Usage Examples

• Noun:
  • The black bead is considered an invasive species in some parts of Florida.
  • Although beautiful, the seeds of the black bead plant contain abrin, a dangerous poison.
  • Researchers are studying the growth patterns of the black bead in the West Indies.

Advanced Usage

• As a modifier: The term can be used attributively to describe things related to the plant.
  • The black bead vine has overtaken the coastal fence line.
• In a botanical/ecological context: The term is primarily used in scientific, horticultural, or environmental discussions to identify the species.
  • The guide pointed out the black bead among the native vegetation.

Variants and Related Words

• Rosary Pea: The most common alternative name for the same plant (), referring to the use of its seeds in prayer rosaries.
• Jequirity Bean: Another synonym for .
• Crab's Eye: A colloquial name referring to the seed's resemblance to an eye.
• Precatory Bean: A name derived from the plant's botanical name.

Synonyms

• Rosary pea
• Jequirity bean
• Crab's eye
• (scientific name)

Notes on Meaning

• Caution: It is critical to distinguish this term from general references to "black beads" as jewelry or decorative objects. "Black bead" as a defined term almost exclusively refers to this specific toxic plant. A generic black bead for a necklace would simply be called a "black bead" or "onyx bead," not referred to as "a black bead."
• Primary Meaning: The primary and almost sole meaning is the botanical one described above.

Noun

1. erect shrub with small if any spines having racemes of white to yellow flowers followed by curved pointed pods and black shiny seeds; West Indies and Florida