Definition

Noun 1. A species of onion: A perennial plant of the genus Allium, characterized by forming clusters of slender, cylindrical bulbs and hollow, tubular leaves (scapes). It is widely cultivated, especially in East Asia, and is primarily used as a vegetable, harvested in its immature stage as a green onion.

Usage Notes

• This is the formal botanical name for a specific plant species. In everyday language, common names like "Welsh onion," "Japanese bunching onion," or "spring onion" are used more frequently.
• The term is typically used in scientific, agricultural, culinary, or horticultural contexts to specify this particular species, distinguishing it from common bulb onions () or chives ().

Examples

• Scientific/Agricultural Context:
  • The farmer decided to cultivate Allium fistulosum due to its hardiness and perennial nature.
  • This study compares the antioxidant properties of Allium fistulosum and Allium cepa.
• Descriptive Context:
  • The dish is garnished with finely chopped Allium fistulosum.

Advanced Usage

• The species name means "hollow" or "pipe-like" in Latin, directly describing its hollow leaves and scapes.

Variants and Related Words

• Common Names: Welsh onion, Japanese bunching onion, spring onion (in some regions), scallion (note: "scallion" can sometimes refer to young as well).
• Genus: (the genus including onions, garlic, leeks, and chives).

Synonyms

• Welsh onion
• Japanese bunching onion
• Green onion (general term, may include other species)

Related Phrases/Compounds

• Allium fistulosum cultivar: Refers to a specific cultivated variety of this species.
• Allium fistulosum leaves: Specifically denotes the hollow, green tubular leaves of the plant used as herbs.

Noun

1. Asiatic onion with slender bulbs; used as early green onions