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yellowflower onion
Scientific Name: Allium coryi
Family: Liliaceae
Category: Monocot
Growth: Forb/herb
Duration: Perennial
Other Names:
Flowering Onions (Allium)
Flowering onions, belonging to the genus Allium, are known for their distinctive spherical or loosely clustered star-shaped flowers. These blooms appear in a range of colors, including pink, white, blue, purple, and yellow. The plants themselves, particularly the bulbs, can exhibit colors from white to yellow to red.
Considerations for Pets
- Members of the Allium family, including onions, are widely recognized as being potentially harmful to pets. This is because they contain compounds that can damage red blood cells and cause anemia.
Considerations for Children
- The text mentions the use of onion flowers and leaves as edible garnishes, but it's important to remember that not all plant parts are safe for consumption.
- Onion bulbs may cause skin irritation in sensitive individuals.
Scientific Name and Common Names
- Scientific Name: Allium (various species)
- Common Names: Flowering onion, Yellow-flowered onion, Yellowflower onion, Lily Leek, Native Leek, Native Onion, Yellow onion.
Taxonomy and Nomenclature
- Family: Liliaceae (Lily Family)
- Synonyms: The USDA Symbol for Allium coryi is ALCO.
Distribution and Habitat
- Allium coryi is native to the Lower 48 United States (L48).
Morphological Characteristics and Growth Habits
- Alliums bear spheres or loose clusters of star-shaped flowers.
- Onions are biennial plants.
- The onion has narrow hollow leaves and a base which enlarges to form a bulb. The bulb can be white, yellow, or red.
- Some species, like Allium moly (Lily Leek), are small alliums that grow 8 to 12 inches tall.
- Allium moly produces bunches of star-shaped, bright yellow blooms.
- Some wild onions have grass-like basal leaves.
Ecological Role
- Iris yellow spot virus (IYSV) is a disease affecting onion production, spread by flower thrips (Frankliniella occidentalis) or yellow flower thrips (F. schultzei).
Quirky Facts
- Yellow onions turn a rich, dark brown when caramelized and give French onion soup its distinctive flavor.
- The yellow parts of the blossoms of some onions are reported to be sweet, even honey-flavored.
- Some varieties, like Yellow Globe Danvers, are known as good winter keepers.
Interactions with other organisms
- Onions are susceptible to blight, which is indicated by pale-green, then yellow leaves.
- Flower thrips and yellow flower thrips can spread Iris yellow spot virus (IYSV) in onion crops.
Resources
- Dave's Garden: a community where people share gardening tips, ideas, seeds, and plants.
- Discover Life: Provides information on the biology, natural history, ecology, identification, and distribution of Allium coryi.