sea onion
Noun: 1. A type of plant: A European plant (Scilla verna or related species) characterized by small blue or purple flowers. 2. A type of plant with medicinal properties: A plant (Drimia maritima, formerly Urginea maritima) having dense spikes of small white flowers and yielding a large bulb with medicinal properties.
The term "sea onion" is used to refer to two distinct plants, both named for their habitat near the sea and their bulbous shape resembling an onion. It is a common name, not a scientific one, so context is important. * The first definition refers to a small, flowering spring bulb common in coastal areas. * The second definition refers to a larger, medically significant plant also known as "squill" or "red squill."
- Definition 1 (Ornamental):
- Definition 2 (Medicinal):
- Historical Context: The medicinal sea onion () has a long history of use as a diuretic, expectorant, and even as a rodenticide. Its use in modern medicine is limited due to its potency and potential toxicity.
- Botanical Distinction: To avoid confusion, the ornamental plant is more precisely called "spring squill" (), while the medicinal plant is often called "sea squill" or "red squill" ().
- Squill: A more common name for the medicinal plant .
- Spring Squill: The specific common name for .
- Urginea: An older botanical genus name for the medicinal sea onion ().
- Bulb: The rounded underground storage organ of these plants, which is the source of the name "onion."
- For the medicinal plant: Squill, Red squill, Sea squill.
- For the ornamental plant: Spring squill, Scilla.
It is critical to understand that "sea onion" is an ambiguous common name for two different plants: 1. A small, blue-flowered ornamental bulb (Scilla verna). 2. A large, white-flowered plant with a bulb used historically in medicine and as a poison (Drimia maritima). This second meaning is more prevalent in historical, herbal, and pharmacological contexts.
- European scilla with small blue or purple flowers
- having dense spikes of small white flowers and yielding a bulb with medicinal properties