Trientalis europaea subsp. arctica L. (Fisch. ex Hook.) Hulten
northern starflower (arctic starflower)
Myrsinaceae (Myrsine family)

Introduction to Vascular Plants

Photograph

© Jim Riley     (Photo ID #1015)


Map

E-Flora BC Static Map

Distribution of Trientalis europaea subsp. arctica
Click here to view the full interactive map and legend

Species Information

General:
Plants from a slender rhizome and a short, scarcely enlarged, horizontal tuber.
Leaves:
Leaves mostly whorled or densely crowded near the stem apex; primary leaves 3-8, lanceolate to oblanceolate or spatulate, widest at or above the midpoint, apices acute to rounded, 2-6 cm; stem leaves reduced in size, alternate, 0.2-2 cm
Flowers:
Flowers 1-2 per plant; corollas usually white (sometimes faintly pink-tinged), 5-9 mm wide; corolla lobes ovate to lanceolate, apices acute to acuminate; pedicels equalling or longer than the leaves, sparsely to densely glandular, 1.5-5.5 cm. Flowering (Apr) May-Jul (Aug)
Fruits:
Fruits globose capsules, valvate; seeds black to reddish-brown, with a deciduous, white, net-like coating.
Stems:
Stems 5-20 cm tall.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Ecology

Ecological Framework for Trientalis europaea ssp. arctica

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

Avg

Min

Max

Elevation (metres)
563 0 1989
Slope Gradient (%)
8 0 90

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

342 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
6 0 8
Modal Nutrient Regime
Class
B
# of field plots
 species was recorded in:
576
Modal BEC Zone Class
CWH

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

BWBS(6), CDF(2), CWH(300), ESSF(70), ICH(66), IDF(1), MH(25), MS(6), SBPS(2), SBS(96), SWB(1)

Habitat and Range

Moist to wet bogs, swamps, streambanks, meadows, and coniferous forests in the lowland, montane, and subalpine zones. Frequent in coastal, nw, and se BC; AK east to NWT, south to CA, ID; Eurasia.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Trientalis arctica Fisch. ex Hook.
Trientalis europaea var. arctica (Fisch. ex Hook.) Ledeb.