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

Eriogonum androsaceum Benth.
androsace buckwheat; rockjasmine buckwheat
Polygonaceae (Buckwheat Family)

Introduction to Vascular Plants

© Lori Skulski  Email the photographer   (Photo ID #27556)
Distribution of Eriogonum androsaceum
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Species Information

Click on the image below to view an expanded illustration for this species.



Illustration Source:  The Illustrated Flora of BC
General:
Perennial herb from a stout taproot, forming thick mats 10-30 cm wide; stems prostrate to ascending, simple, several, 3-7 cm tall/long.
Leaves:
Basal leaves oblanceolate to spoon-shaped, grey-hairy, sometimes smooth above, crowded, the blades 1-2 cm long, margins rolled under, the stalks sometimes as long as the blade; stem leaves lacking.
Flowers:
Inflorescence a small umbel, subtended by a whorl of 4-6 linear bracts; flower stalks naked; involucres narrowly bell-shaped, hairy, 3-4 mm long; perianths light yellow and usually pinkish to rose-tinged, woolly-hairy below, 3.5-5 mm long, 6-lobed almost the full length; flowers mostly functionally imperfect.
Fruits:
Achenes, 3-angled, smooth.

Source:  The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Eriogonum androsaceum

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, 2008)
Site Information
 Value / Class

Average

Minimum

Maximum
Elevation (metres)
 1867 785 2501
Slope Gradient (%)
 20.9 0 66

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

 210.5 25 240
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric] 		3.0 2 7
Modal Nutrient Regime
Class
 Poor
Number of field plots
 species was recorded in:
 9
Modal BEC Zone Class
 ESSF

All BEC Zones (# of stations/zone) species was recorded in

 ESSF(7), SWB(1)

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.

Habitat / Range

Dry rocky slopes and forest openings in the subalpine and alpine zones; rare in SE BC; E to SW AB and S to N MT.

Source:  The Illustrated Flora of BC

Synonyms and Alternative Names

Eriogonum flavum var. androsaceum (Benth.) M.E. Jones

Taxonomic and Nomenclatural Links

Flora North America treatment for Polygonaceae
 Flora North America treatment for Eriogonum androsaceum
Genetic information (NCBI Taxonomy Database)
 International Plant Names Index
 Taxonomic Information from the Missouri Botanical Garden
 Vascular Plant Type Database, New York Botanical Gardens
 Integrated Taxonomic Information System

Additional Photo Sources

Burke Museum of Natural History's Image Collection
 Images From CalPhoto
UT Austin's Native Plant Database
 Google Image Search
 Flickr Image Search

Related Databases

FDA Poisonous Plant Database

General References

Google Scholar Search
Family References
 General Botanical References for BC
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2013. 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: 5/19/2013 3:39:50 PM ]
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E-Flora BC: An initiative of the Spatial Data Lab, Department of Geography UBC, and the UBC Herbarium.