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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/1-2844/12-199510. Accessed 12 Dec. 2024.
Specimen Information
There are 130 specimens of this Species.
36507 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Jasper National Park, Maligne River
Date Collected1946-08-18
23879 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Crowsnest Forest Reserve, Fly Hill
Date Collected1955-07-28
41525 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Jasper National Park
Date Collected1967-07-12
76690 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Mount Allan
Date Collected1975-08-06
85574 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Maycroft
Date Collected1976-07-31
41524 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park
Date Collected1967-07-27
41523 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Banff National Park, Redearth Creek
Date Collected1967-07-08
37319 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Fort Saskatchewan
Date Collected1971-06-23
39412 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Peace River
Date Collected1971-08-05
90062 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Heart Mountain
Date Collected1973-06/1974-07
90072 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, Alberta, Cabin Ridge
Date Collected1975-08-12
57508 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, British Columbia, Mount Nelson
Date Collected1969-08
43950 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, British Columbia, Vancouver Island, Nanaimo
Date Collected1964-07-02
43948 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, British Columbia, Vancouver Island, Victoria
Date Collected1964-07-10
43949 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, British Columbia, Purcell Mountains
Date Collected1964-08-07
37191 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, British Columbia, Gray Creek
Date Collected1944-07-04
4813 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, British Columbia, Fort St. John
Date Collected1948-06-23
4812 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, British Columbia, Taylor
Date Collected1931-08-03
49394 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: Canada, British Columbia, Vancouver Island, Second Lake
Date Collected1968-06-20
73384 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: United States, Colorado, El Paso County, Pikes Peak
Date Collected1955-07-30
92328 - Allium cernuum Roth
University of Alberta Vascular Plant Herbarium
Common Namenodding onion
Place CollectedNorth America: United States, Montana, Jefferson County, Boulder Creek River Valley
Date Collected1987-07-24