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

Apocynum x floribundum Greene
western dogbane
Apocynaceae (Dogbane family)

Introduction to Vascular Plants

Distribution of Apocynum x floribundum
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Species Information

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Illustration Source: The Illustrated Flora of British Columbia

Key to the Species and Taxonomic Notes

1. Corollas greenish-white to white, 2-4.5 mm long, usually less than twice as long as the calyces; leaves ascending................. A. cannabinum

1. Corollas pinkish, 3.5-10 mm long, usually more than twice as long as the calyces; leaves spreading to drooping.

2. Calyces usually at least half as long as the corollas, lobes abruptly sharp-pointed to long-pointed ............................x A. floribundum

2. Calyces usually less than half as long as the corollas, lobes obtuse .....................A. androsaemifolium

Ecology

Ecological Framework for Apocynum x floribundum

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)	860	860	860
Slope Gradient (%)	32	32	32
Aspect (degrees) [0 - N; 90 - E; 180 - S; 270 - W]	240	239	240
Soil Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric]	6	6	6
Modal Nutrient Regime Class	E
Number of field plots species was recorded in:	1
Modal BEC Zone Class	CWH
All BEC Zones (# of stations/zone) species was recorded in:	CWH(1)
Source: Klinkenberg 2020

Status Information

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Native	S4	No Status	Not Listed

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

Synonyms and Alternate Names

x Apocynum

Taxonomic and Nomenclatural Links

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

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

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: 2024-05-20 4:45:03 PM ]

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.