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

Senecio pseudoarnica Less.
beach groundsel (seaside ragwort)
Asteraceae (Aster family)

Introduction to Vascular Plants

© Jocie Ingram  Email the photographer   (Photo ID #284)

E-Flora BC Static Map
Distribution of Senecio pseudoarnica
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Species Information

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General:
Perennial herb from an erect to ascending rhizome; stems erect or ascending, solitary, simple or branched, glabrous below, woolly-hairy above, 5-90 cm tall.
Leaves:
Basal leaves usually smaller than the stem leaves, deciduous by flowering time; stem leaves thick, spoon-shaped to oblanceolate, egg-shaped or oblong, broadly stalked to unstalked, 2-25 cm long, 1-10 cm wide, toothed, sparsely to moderately woolly-hairy above and below or nearly glabrous above, not much reduced upwards except in the inflorescence.
Flowers:
Heads with ray and disk flowers, up to 4.5 cm across, solitary to several on glabrous to woolly-hairy stalks in a compact inflorescence; involucres 10-25 mm tall; involucral bracts lance-oblong to more linear, green or purplish, margins translucent, sparsely to moderately woolly-hairy; bracteoles numerous, equal to or longer than the involucral bracts; ray flowers yellow, mostly 10-25 mm long; disk flowers yellow.
Fruits:
Achenes oblong, faintly nerved, glabrous; pappus of white hairlike bristles.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to mesic sand dunes, beaches and tidal flats in the lowland zone; rare on the N Queen Charlotte Islands; amphiberingian, N to AK, disjunct on the coasts of Labr., NF, PQ, NS and NB, NE Asia.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Senecio pseudoarnica

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) 1125 1422 1719
Slope Gradient (%) 0 3 7
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
245 245 245
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
4 5 7
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
2
Modal BEC Zone Class
ESSF
All BEC Zones (# of stations/zone) species was recorded in: BWBS(1), ESSF(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.

Taxonomic and Nomenclatural Links

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General References