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

Stephanomeria tenuifolia (Raf.) H.M. Hall
narrow-leaved stephanomeria (wire lettuce)
Asteraceae (Aster family)

Introduction to Vascular Plants

© Robert Flogaus-Faust  Email the photographer   (Photo ID #80934)

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Distribution of Stephanomeria tenuifolia
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Species Information

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General:
Perennial herb from a stout taproot and branching, woody stem-base or deep-seated, stout, creeping roots; stems much branched throughout, glabrous, exuding milky juice when broken, 10-70 cm tall.
Leaves:
Basal leaves lacking; stem leaves alternate, linear to threadlike, entire or sparsely toothed, 1.5-8 cm long, 2-3 mm wide, uppermost reduced and scalelike.
Flowers:
Heads with strap-shaped flowers, numerous, terminating the open branches; involucres 7-11 mm tall; involucral bracts lanceolate with mostly 5 glabrous, principal bracts and several much-reduced outer ones; ray flowers pink or occasionally white, mostly 5.
Fruits:
Achenes, 4-6 mm long, longitudinally ribbed and grooved; pappus of white feathery bristles.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry grasslands, shrublands and open forests in the steppe and lower montane zones; frequent in SC BC; E to MT and S to CA and TX.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Stephanomeria tenuifolia

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

Minimum

Average

Maximum

Elevation (metres) 295 655 1800
Slope Gradient (%) 0 38 90
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
8 189 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 1 5
Modal Nutrient Regime
Class
B
Number of field plots
 species was recorded in:
83
Modal BEC Zone Class
BG
All BEC Zones (# of stations/zone) species was recorded in: BG(39), ICH(3), IDF(12), PP(27)

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.

Synonyms and Alternate Names

Lygodesmia tenuifolia (Raf.) Shinners
Stephanomeria minor var. uintensis (Goodrich & S.L. Welsh) Kartesz
Stephanomeria tenuifolia var. uintaensis Goodrich & S.L. Welsh
Stephanomeria tenuifolia var. uintensis Goodrich & S.L. Welsh

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References