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

Stellaria humifusa Rottb.
salt marsh starwort (saltmarsh starwort)
Caryophyllaceae (Pink family)

Introduction to Vascular Plants

© Jocie Ingram  Email the photographer   (Photo ID #285)

E-Flora BC Static Map
Distribution of Stellaria humifusa
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Species Information

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General:
Perennial herb from slender rhizomes; stems prostrate, several, branched, matted, glabrous, 2-40 cm long.
Leaves:
Basal leaves lacking; stem leaves opposite, unstalked, narrowly lanceolate to elliptic, 0.6-1.8 cm long, 1-5 mm wide, thick and fleshy; stipules lacking.
Flowers:
Inflorescence of solitary flowers in the leaf axils, or in a few-flowered, leafy cluster; petals 5, white, 2-cleft, 4-6 mm long; sepals 5, lanceolate, 3.5-5 mm long at flowering time, inconspicuously 3-nerved.
Fruits:
Capsules straw-coloured, egg-shaped, 4-5 mm long, 6-valved; seeds brown, 0.8-1 mm long, lightly roughened, nearly smooth.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Wet salt marshes, mudflats and saline shores in the lowland zone; infrequent in coastal and SW BC, known from the Queen Charlotte Islands, Vancouver Island and Burrard Inlet; circumpolar, N to AK, YT and NT, E to NF and S to OR; Eurasia.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Stellaria humifusa

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) 0 240 1435
Slope Gradient (%) 0 2 10
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
205 222 240
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
4 6 7
Modal Nutrient Regime
Class
D
Number of field plots
 species was recorded in:
6
Modal BEC Zone Class
CWH
All BEC Zones (# of stations/zone) species was recorded in: CWH(5), MS(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.

Synonyms and Alternate Names

Alsine humifusa (Rottb.) Britton
Stellaria humifusa var. oblongifolia Fenzl
Stellaria humifusa var. suberecta B. Boivin

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References