Definition

1. Noun:
   • A perennial twining vine (Lablab purpureus, syn. Dolichos lablab) native to the Old World tropics, characterized by trifoliate leaves, racemes of fragrant purple pea-like flowers, and maroon pods containing edible seeds. It is cultivated both as an ornamental plant and as a vegetable, particularly in the Indian subcontinent.
   • A tree of the genus Catalpa, specifically the species Catalpa bignonioides, known for its large leaves, showy clusters of white flowers, and long, slender seed pods.

Usage Examples

• Noun (Vine):

  • The garden featured an Indian bean vine covered in purple flowers.
  • In some regions, the pods of the Indian bean are cooked as a vegetable.

• Noun (Tree):

  • The large, heart-shaped leaves of the Indian bean tree provide ample shade.
  • The Indian bean tree is also commonly called the southern catalpa.

Advanced Usage

• Horticultural Context: The term is used in gardening and agriculture to specify the plant species, often requiring additional context (e.g., "the leguminous Indian bean vine" or "the Indian bean catalpa tree") to avoid ambiguity between the two distinct plants.
• Culinary Context: When referring to the vine, "Indian bean" can specify the edible seeds or immature pods used in cooking.
  • The recipe calls for fresh Indian bean pods.

Variants and Related Words

• Lablab bean: Another common name for the vine .
• Hyacinth bean: A synonym for the vine .
• Catalpa: The genus name for the tree, often used as a common name (e.g., "catalpa tree").
• Southern catalpa: A specific common name for .

Synonyms

• For the vine: Lablab, hyacinth bean, bonavist bean, Egyptian bean.
• For the tree: Catawba, cigar tree, worm tree (the latter referring to its use as a host for the catalpa sphinx moth caterpillar).

Notes on Meaning

This is a polysemous word (a word with multiple distinct meanings). The two primary meanings refer to completely different botanical species: 1. A leguminous, climbing vine (Lablab purpureus) cultivated for food and ornament. 2. A deciduous, flowering tree (Catalpa bignonioides) grown for shade and ornament.

The intended meaning is usually clear from the context (e.g., discussing vegetables vs. landscape trees).

Noun

1. perennial twining vine of Old World tropics having trifoliate leaves and racemes of fragrant purple pea-like flowers followed by maroon pods of edible seeds; grown as an ornamental and as a vegetable on the Indian subcontinent; sometimes placed in genus Dolichos
2. tree of the genus Catalpa with large leaves and white flowers followed by long slender pods