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Species Details
Allium cernuum Roth
University of Alberta Vascular Plant Herbarium Read more about this collection »
LeavesSeveral; 2-4 mm wide (Moss, 1983). Linear; shorter than flowering stem; margins entire or have small teeth; no stem leaves (E-Flora BC).
FlowersUmbel nodding; perianth segments 4-6 mm long; elliptical; pink or white; exserted stamen (Moss, 1983). 6 tepals; egg-shaped; 6 stamens (E-Flora BC).
Fruits and SeedsCapsule; 6 high crests (Moss, 1983). Egg-shaped; 3 lobes; 6 black seeds (E-Flora BC).
Scientific Name
Allium cernuum Roth
Common Name
nodding onion
General Description
A perennial herb that develops from a slender bulb and persistent, membranous rhizome; the flowering stem is 10-50 cm tall and arches at its tip to bear a cluster of pink or white flowers (Moss, 1983; E-Flora BC).
Leaves
Several; 2-4 mm wide (Moss, 1983). Linear; shorter than flowering stem; margins entire or have small teeth; no stem leaves (E-Flora BC).
Flowers
Umbel nodding; perianth segments 4-6 mm long; elliptical; pink or white; exserted stamen (Moss, 1983). 6 tepals; egg-shaped; 6 stamens (E-Flora BC).
Fruits and Seeds
Capsule; 6 high crests (Moss, 1983). Egg-shaped; 3 lobes; 6 black seeds (E-Flora BC).
Phenology
July to October (JSTOR).
Notes
2n=14* (Moss, 1983). Also included in this species is Allium recurvatum (Moss, 1983).
Range/Distribution
Alberta: Predominantly SW along mountain range with some occurrences more central (Canadensys). CAN (BC, SK, ON); USA (WA, OR, MT, ID, WY, ND, SD, UT, CO, AZ, NM, TX, NE, MN, IA, WI, IL, MO, AR, MS, AL, GA, TN, KY,…
Alberta: Predominantly SW along mountain range with some occurrences more central (Canadensys). CAN (BC, SK, ON); USA (WA, OR, MT, ID, WY, ND, SD, UT, CO, AZ, NM, TX, NE, MN, IA, WI, IL, MO, AR, MS, AL, GA, TN, KY, IN, MI, OH, NC, SC, VA, WV, PA, NY, NJ) (USDA).
Citation
Page Citation for Allium cernuum Roth
Page Citation
"Species Details - Allium cernuum Roth, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/1-2844/12-3409. Accessed 04 Jul. 2024.
Specimen Information
There are 130 specimens of this Species.
4797 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Wanham
Date Collected1947-07-20
56137 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Jasper National Park, Henry House
Date Collected1974-07-16
77537 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Crowsnest Ridge
Date Collected1974-08-13
102004 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Elkwater
Date Collected1995-09-17
4804 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Pincher
Date Collected1939-08-02
80982 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Laurier Lake
Date Collected1976-07-03
79740 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Grant Creek
Date Collected1975-07-20
79739 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Elk Point
Date Collected1975-07-11
79738 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Elk Point
Date Collected1973-09-01
4803 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park
Date Collected1953-07-22
4807 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Pincher Creek
Date Collected1939-07-25
4809 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Okotoks
Date Collected1950-07-27
45665 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park, Sofa Creek
Date Collected1970-07-27
45664 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park, Lakeview Ridge
Date Collected1969-08-03
45663 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park, Red Rock Canyon
Date Collected1969-08-08
45662 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park, Rowe Lakes
Date Collected1970-07-29
46230 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park, Sofa Mountain
Date Collected1972-07-17
57527 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Porcupine Hills
Date Collected1971-07-29
77538 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Peace River
Date Collected1974-07-11
37194 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Calgary
Date Collected1952-07-29
37189 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Calgary
Date Collected1943-08-06