Juncus balticus Willd.
Baltic rush
Juncaceae (Rush family)
Introduction to Vascular Plants
Baltic rush
Juncaceae (Rush family)
Introduction to Vascular Plants
SUBTAXA PRESENT IN BC
Juncus balticus ssp. ater
Species Information
General:
Perennial herb from long, creeping rhizomes; stems arising singly, not densely clustered, round, usually straight, smooth, wiry, erect, 40-60 cm tall.
Leaves:
Reduced to small sheaths at the base of the stem; sheaths shiny brown.
Flowers:
Inflorescence nodding, with 8 to 20 light-coloured flowers on branches 4-8 cm long, appearing as if on the side of the stem, located closer to the upper third of the stem; perianth segments dark with translucent margins, reddish-brown, 3.2-4.7 mm long, pointed, the outer about equal to the inner segments; stamens 6; anthers longer than or equal to the filaments; involucral bract 5-20 cm long, cylindrical, resembling a continuation of the stem, shorter than the stem.
Fruits:
Capsules, with blunt tips, about equal to the perianth segments or slightly longer; seeds spindle-shaped, 0.8-1 mm long, lacking tail-like appendages.
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.
Illustration Source: The Illustrated Flora of British Columbia
Ecology
Ecological Framework for Juncus balticus
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)
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) |
863 | 0 | 2100 |
| Slope
Gradient (%) |
4 | 0 | 56 |
|
Aspect (degrees) |
145 | 1 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 0 | 8 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
323 | ||
| Modal
BEC Zone Class |
IDF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BAFA(1), BG(31), BWBS(2), CDF(36), CWH(15), ESSF(17), ICH(2), IDF(158), MS(5), PP(18), SBPS(31), SBS(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Lakeshores and sandy river bars in the lowland, steppe and montane zones; frequent throughout BC; circumpolar, N to AK, YT and NT, E to NF and S to ME, PA, VA, OH, IN, AR, TX, NM, AZ and CA; Eurasia.Status Information
Synonyms
Synonyms and Alternate Names:
Juncus arcticus subsp. littoralis (Engelm.) Hultén
Juncus vallicola