E-Flora BC: Electronic Atlas of the Flora of British Columbia

Cicuta bulbifera L.
bulbous water-hemlock (bulblet-bearing water hemlock)
Apiaceae

Introduction to Vascular Plants

Distribution of Cicuta bulbifera
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Species Information

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Illustration Source: The Illustrated Flora of British Columbia

General:
Stout perennial herb from a taproot or cluster of tuberous roots; stems single, not thickened at the base, erect, 0.3 to 1 m tall.

Leaves:
Basal leaves absent; stem leaves compound, divided 1-3 times; the middle and lower leaves dissected, narrowly linear; the upper leaves reduced with fewer segments, many bearing axillary bulbils; leaflets 3-5 cm long.

Flowers:
Inflorescence terminal in a compound umbel, white to greenish; calyx saw-toothed.

Fruits:
Rounded, 1.5-2 mm long, constricted where the carpels join, ribs broad.

Source: The Illustrated Flora of British Columbia

Key to the Species and Taxonomic Notes

KEY TO CICUTA

1. Axils of leaves with bulblets; leaflets with narrowly linear segments C. bulbifera

1. Axils of leaves without bulblets; leaflets lanceolate.

2. Fruits slightly broader than long; midvein on upper leaflet surface scabrous C. virosa

2. Fruits from as broad as long to longer than broad; midvein on upper leaflet surface glabrous.

3. Leaflets 3-4 times as long as broad, lanceolate to narrowly oblong or elliptic; fruit with a narrow raised border along edge of dark interval C. douglasii

Leaflets more than 5 times as long as broad, linear to narrowly lanceolate; fruit without a raised border along edge of dark interval C. maculata

Habitat / Range

Wet marshes and meadows in the montane zone; infrequent in BC N of 52degreeN and E of the Coast-Cascade Mountains; N to AK, YT and NT, E to NF and S to FL, NE and OR.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Cicuta bulbifera

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information	Value / Class
Site Information	Minimum	Average	Maximum
Elevation (metres)	634	969	1210
Slope Gradient (%)	0	0	2
Aspect (degrees) [0 - N; 90 - E; 180 - S; 270 - W]	30	30	30
Soil Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric]	7	7	8
Modal Nutrient Regime Class	D
Number of field plots species was recorded in:	9
Modal BEC Zone Class	SBS
All BEC Zones (# of stations/zone) species was recorded in:	ICH(1), SBPS(4), SBS(4)
Source: Klinkenberg 2020

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Status Information

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Native	S5	Yellow	Not Listed

BC Ministry of Environment: BC Species and Ecosystems Explorer, the authoritative source for conservation information in British Columbia.

Taxonomic and Nomenclatural Links

Genetic information (NCBI Taxonomy Database)
International Plant Names Index
Taxonomic Information from the World Flora Online
Integrated Taxonomic Information System

Additional Range and Status Information Links

Burke Museum of Natural History (Washington State records)
CalFlora
Consortium of Pacific Northwest Herbaria records
Jepson Interchange
NatureServe Explorer
USDA

Additional Photo Sources

Images From CalPhoto
UT Austin's Native Plant Database
Google Image Search
Flickr Image Search

General References

Google Scholar Search
Family References
General Botanical References for BC

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-05-17 12:20:07 AM ]

Disclaimer: The information contained in the E-Flora atlas pages is derived from expert sources as cited in each section. This information is scientifically based. E-Flora also acts as a portal to other sites via deep links. As always, users should refer to the original sources for complete information. E-Flora BC is not responsible for the accuracy or completeness of the original information.