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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/1-2844/12-201453. Accessed 04 Jan. 2025.
Specimen Information
There are 130 specimens of this Species.
102918 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Banff National Park, Cascade Mountain
Date Collected1962-08-06
75467 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Dunvegan
Date Collected1977-05-16
75468 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, St. Mary River
Date Collected1975-08-12
4806 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Banff National Park, Mount Norquay
Date Collected1915-07
4805 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Edmonton
Date Collected1915-07-26
4808 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park, Mount Crandell
Date Collected1946-08-01
26598 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Banff National Park
Date Collected1933-07-18
73383 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Dunvegan
Date Collected1954-08-10
75846 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Crowsnest Ridge
Date Collected1974-08-13
75847 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Peace River Region
Date Collected1974-07-11
37188 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park, Cameron Creek
Date Collected1942-08-01
36503 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Fort Saskatchewan
Date Collected1946-07-12
4791 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Gibbons
Date Collected1929-08-10
4800 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Kananaskis Country, Peter Lougheed Provincial Park, Highwood Pass
Date Collected1958-08-20
4793 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park, Cameron Lake
Date Collected1935-07-17
4792 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Banff National Park, Bankhead
Date Collected1934-08-10
4796 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Calgary
Date Collected1946-07-24
4794 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Banff National Park
Date Collected1940-08-03
4799 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Grande Prairie
Date Collected1948-06-19
4798 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Spirit River
Date Collected1947-07-24
4795 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Peace River
Date Collected1941-07-17