Allium cernuum

Last updated

Nodding onion
Allium cernuum 1.jpg
Umbel
Status TNC G5.svg
Secure  (NatureServe) [1]
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Allioideae
Genus: Allium
Species:
A. cernuum
Binomial name
Allium cernuum
Synonyms [2] [3]
  • Allium alatumSchreb. ex Roth
  • Allium alleghenienseSmall
  • Allium cernuum f. albaJ.K.Henry
  • Allium cernuum subsp. neomexicanum(Rydb.) Traub & Ownbey
  • Allium cernuum var. neomexicanum(Rydb.) J.F.Macbr.
  • Allium cernuum f. obtusumCockerell
  • Allium cernuum var. obtusum(Cockerell) Cockerell
  • Allium cernuum subsp. obtusum(Cockerell) Traub & Ownbey
  • Allium cernuum var. obtusumCockerell ex J.F. Macbr.
  • Allium neomexicanumRydb.
  • Allium nutansSchult. & Schult.f.
  • Allium oxyphilumWherry
  • Allium recurvatumRydb.
  • Allium tricornePoir.
  • Calliprena cernua(Roth) Salisb.
  • Cepa cernua(Roth) Moench
  • Gynodon cernuum(Roth) Raf.
  • Gynodon elliotiiRaf.
  • Gynodon rupestreRaf.

Allium cernuum, known as nodding onion or lady's leek, [4] is a perennial plant in the genus Allium . It grows in open areas in North America.

Contents

Description

Allium cernuum is a herbaceous perennial growing from an unsheathed elongated conical bulb which gradually tapers directly into several keeled (thin and flat) grass-like leaves, 2–4 millimetres (332532 inch) in width. Each mature bulb bears a single flowering stem, which terminates in a downward nodding umbel of white or rose, campanulate (bell-shaped) flowers that bloom in July and August. The flowers are arranged into downward facing umbels and each flower is about 5 mm (316 in) across, pink or white with yellow pollen and yellow anthers. A. cernuum does not have bulblets in the inflorescence. [5] The flowers mature into spherical crested fruits which later split open to reveal the dark shiny seeds. [6] [7] [8] [9] [10] [11] [12] [13]

Similar species

In addition to other species of Allium , wild garlic, field garlic, and wild leek look similar, [14] as well as other onion-looking poisonous species, such as deathcamas, which lacks the expected onion odor. [14]

Distribution and habitat

Bombus vancouverensis feeding on Allium cernuum Bombus vancouverensis - Van Loon 01.jpg
Bombus vancouverensis feeding on Allium cernuum

The species has been reported from much of the United States, Canada and Mexico including in the Appalachian Mountains from Alabama to New York State, the Great Lakes Region, the Ohio and Tennessee River Valleys, the Ozarks of Arkansas and Missouri, and the Rocky and Cascade Mountains of the West, from Mexico to Washington. It has not been reported from California, Nevada, Florida, Louisiana, Mississippi, New Jersey, Delaware, New England, or much of the Great Plains. In Canada, it grows from Ontario to British Columbia. [6] [15] [16] [17] [18]

Despite its wide geographical distribution, it is absent from much of its range. In the southern part of its range in North America it is limited to mountainous habitats, and in other parts of its North American range it is limited to local and disjunct population. It is absent from North Dakota and most of the Great Plains states and intermountain region of the U.S. [5] In Minnesota it is listed as a threatened species. [19]

It can be found growing in deciduous woodlands, to open grasslands. [5]

Uses

While A. cernuum is edible and has a strong onion flavor, it is not considered to have culinary value in the modern world. [20]

Cultivation

It is grown in gardens for its distinctive nodding flowers that are white, pink, or maroon; it is winter hardy in U.S. Department of Agriculture hardiness zones 3–9. [4] In gardens it will often form dense clusters of bulbs over time from offsets of the parent bulb. [21] Plants are healthiest in full sun with well drained soil, though in hot climates they appreciate some shade especially in the afternoons. [20]

Related Research Articles

<i>Allium canadense</i> Species of flowering plant

Allium canadense, the Canada onion, Canadian garlic, wild garlic, meadow garlic and wild onion is a perennial plant native to eastern North America from Texas to Florida to New Brunswick to Montana. The species is also cultivated in other regions as an ornamental and as a garden culinary herb. The plant is also reportedly naturalized in Cuba.

<i>Allium ampeloprasum</i> Species of flowering plant

Allium ampeloprasum is a member of the onion genus Allium. The wild plant is commonly known as wild leek or broadleaf wild leek. Its native range is southern Europe to southwestern Asia and North Africa, but it is cultivated in many other places and has become naturalized in many countries.

<i>Allium validum</i> Species of flowering plant

Allium validum is a species of flowering plant commonly called swamp onion, wild onion, Pacific onion, or Pacific mountain onion. It is native to the Cascade Range, to the Sierra Nevada, the Rocky Mountains, and other high-elevation regions in California, Oregon, Washington, Nevada, Idaho and British Columbia. It is a perennial herb and grows in swampy meadows at medium and high elevations.

<i>Allium textile</i> Species of flowering plant

Allium textile is a common species of wild onion found in the central part of North America.

<i>Allium acuminatum</i> Species of flowering plant

Allium acuminatum, also known as the tapertip onion or Hooker's onion, is a species in the genus Allium native to North America.

<i>Allium atrorubens</i> Species of flowering plant

Allium atrorubens is a species of wild onion known by the common name dark red onion. This plant is native to the southwestern United States where it grows in the sandy soils of the Mojave Desert, the Great Basin and higher-elevation deserts in Nevada, eastern California southwestern Utah, northwestern Arizona.

<i>Allium lemmonii</i> Species of flowering plant

Allium lemmonii is a species of wild onion known by the common name Lemmon's onion, named for botanist John Gill Lemmon (1831–1908). It is native to the western United States, at elevations of 1200–1900 m in the Great Basin of Utah, Nevada, northern and eastern California, eastern Oregon, southwestern Idaho.

<i>Allium nevadense</i> Species of flowering plant

Allium nevadense is a species of wild onion known by the common name Nevada onion. It is native to the western United States where it grows in sand and rocky soil at elevations of 1400–1700 m. The species is widespread in Utah, Nevada and southern Idaho, and has been reported also from southeastern California, northwestern Arizona, western and central Colorado and eastern Oregon.

<i>Allium parvum</i> Species of flowering plant

Allium parvum is an American species of wild onion known by the common name small onion. It is native to the western United States where it is a common member of the flora in rocky, dry areas in mountainous areas, especially in talus at elevations of 1,200–2,800 m (3,900–9,200 ft). It is widespread in California, Nevada, Oregon and Idaho, and also reported from western Utah and from extreme southwestern Montana.

<i>Goodyera oblongifolia</i> Species of orchid

Goodyera oblongifolia is a species of orchid known by the common names western rattlesnake plantain and giant rattlesnake plantain. It is native to much of North America, particularly in the mountains of the western United States and Canada, from Alaska to northern Mexico, as well as in the Great Lakes region, Maine, Quebec and the Canadian Maritime Provinces.

Allium punctum is a species of wild onion known by the common name dotted onion or Modoc onion. It is native to the western United States in and around the Modoc Plateau in northeastern California, northwestern Nevada, and southeastern Oregon. It is uncommon, growing in volcanic flatlands created by old lava flows.

Thelypodium laxiflorum, the droopflower thelypody, is a plant species native to the southwestern United States. It grows in open, rocky places on slopes and cliff faces, usually in pinyon-juniper woodlands at elevations of 4,900–10,200 feet (1,500–3,100 m). It has been reported from Utah, western Colorado, southern Nevada, northwestern Arizona, and northwestern New Mexico.

<i>Allium aaseae</i> Species of flowering plant

Allium aaseae, the Southern Idaho onion or Aase's onion, is a plant species endemic to southwestern Idaho. It has been reported from 6 counties: Elmore, Ada, Boise, Gem, Payette and Washington.

<i>Allium brandegeei</i> Species of flowering plant

Allium brandegeei is a plant species native to the western United States. It has been reported from western Colorado, Utah, Idaho, eastern Oregon, Park County, Montana and Elko County, Nevada.

<i>Allium geyeri</i> Species of flowering plant

Allium geyeri or Geyer's Onion is a North American species of onion widespread in the western United States and in western Canada. It is found in the Rocky Mountain States from New Mexico to Idaho, Great Basin, the Pacific Northwest, Texas, South Dakota, Arizona, Manitoba, British Columbia, Alberta and Saskatchewan.

<i>Allium macropetalum</i> Species of flowering plant

Allium macropetalum, the desert onion, is a species of wild onion native to the desert regions of southwestern United States and northwestern Mexico. It is known from desert plains and hills in Sonora, Arizona, Utah, Colorado, New Mexico, and Texas, at elevations up to 2500 m.

Allium passeyi is a plant species endemic to Box Elder County in northwestern Utah. It grows in shallow, stony locations at elevations of 1400–1600 m.

<i>Allium simillimum</i> Species of flowering plant

Allium simillimum, the Simil Onion, or dwarf onion, is a plant species native to Idaho and Montana. It grows on sandy soils at high elevations in the mountains, 1800–3400 m.

<i>Allium brevistylum</i> Species of flowering plant

Allium brevistylum is a plant species native to the western United States. It grows in meadows and along stream banks high in the mountains of Colorado, Utah, Wyoming, Montana and Idaho, at elevations of 2200–3400 m.

<i>Allium douglasii</i> Species of flowering plant

Allium douglasii, the Douglas onion, is a plant species native to northeastern Oregon, eastern Washington, and northern Idaho. It grows in shallow soils at elevations of 400–1,300 m (1,300–4,300 ft).

References

  1. NatureServe (2023). "Allium cernuum Nodding Onion". NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 17 April 2023.
  2. "Allium cernuum". Tropicos . Missouri Botanical Garden.
  3. "Allium cernuum". World Checklist of Selected Plant Families . Royal Botanic Gardens, Kew via The Plant List. Note that this website has been superseded by World Flora Online
  4. 1 2 Geoffrey Burnie (1999). Botanica: The Illustrated A-Z of Over 10,000 Garden Plants. Welcome Rain. p. 75. ISBN   0760716420.
  5. 1 2 3 Barbara Coffin; Lee Pfannmuller (1988). Minnesota's Endangered Flora and Fauna. U of Minnesota Press. p. 47. ISBN   978-0-8166-1689-3.
  6. 1 2 McNeal Jr., Dale W.; Jacobsen, T. D. (2002). "Allium cernuum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 26. New York and Oxford: Oxford University Press via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  7. Hilty, John (2020). "Nodding Onion (Allium cernuum)". Illinois Wildflowers. Retrieved 24 June 2023.
  8. Gleason, H. A.; Cronquist, A.J. (1991). Manual of the Vascular Plants of Northeastern United States and Adjacent Canada (2 ed.). Bronx: New York Botanical Garden. pp. i–910.
  9. Cronquist, A.J.; Holmgren, A. H.; Holmgren, N. H.; Reveal, J. L. (1977). "Vascular Plants of the Intermountain West, U.S.A.". In Cronquist, A.J.; Holmgren, A. H.; Holmgren, N. H.; Reveal, J. L.; Holmgren, P. K. (eds.). Intermountain Flora. Vol. 6. New York: Hafner Pub. Co. pp. 1–584.
  10. Hitchcock, C. H.; Cronquist, A.J.; Ownbey, F. M.; Thompson, J. W. (1969). "Vascular Cryptogams, Gymnosperms, and Monocotyledons". In Hitchcock, C. L. (ed.). Vascular Plants of the Pacific Northwest. Vol. 1. Seattle: University of Washington Press. pp. 1–914.
  11. Radford, A. E.; Ahles, H. E.; Bell, C. R. (1968). Manual of the Vascular Flora of the Carolinas. Chapel Hill: University of North Carolina Press. pp. i–lxi, 1–1183.
  12. Moss, E. H. (1983). Flora of Alberta (2 ed.). Toronto: University of Toronto Press. pp. i–xii, 1–687. ISBN   9780802025081.
  13. Bailey, L.H.; Bailey, E.Z. (1976). Hortus Third . New York: MacMillan. p. 49. ISBN   9780025054707.
  14. 1 2 Elias, Thomas S.; Dykeman, Peter A. (2009) [1982]. Edible Wild Plants: A North American Field Guide to Over 200 Natural Foods. New York: Sterling. p. 58. ISBN   978-1-4027-6715-9. OCLC   244766414.
  15. "Allium cernuum". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
  16. USDA, NRCS (n.d.). "Allium cernuum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team.
  17. Brako, L.; Rossman, A.Y.; Farr, D.F. (1995). Scientific and Common Names of 7,000 Vascular Plants in the United States. pp. 1–294.
  18. CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, Mexico City.
  19. "Endangered, Threatened, and Special Concern. Species ID Guide" (PDF). Minnesota Landscape Arboretum.
  20. 1 2 "Allium cernuum". Missouri Botanical Garden Plant Finder. Missouri Botanical Garden. Retrieved 2 June 2023.
  21. Barr, Claude A. (1983). Jewels of the plains : wild flowers of the Great Plains grasslands and hills. Minneapolis: University of Minnesota Press. p. 19. ISBN   0-8166-1127-0.