Juncus alpinoarticulatus Chaix
alpine rush (northern green rush)
Juncaceae (Rush family)
Introduction to Vascular Plants
alpine rush (northern green rush)
Juncaceae (Rush family)
Introduction to Vascular Plants
Species Information
General:
Perennial, loosely tufted herb from short rhizomes; stems erect, 15-45 cm tall.
Leaves:
Located on the lower part of the stem, nearly circular in cross-section, tapered, the early leaves stiff, with prominent complete cross-walls; sheaths open, with short, pointed, ear-shaped lobes.
Flowers:
Inflorescence terminal, 3-7 cm long, the few to several heads cone-shaped, mostly 3- to 6- (10-) flowered, the branches few, erect; perianth segments brown or purplish-brown, 2-2.5 mm long, generally blunt and rounded but the inner shorter and the outer longer and pointed; stamens 6; anthers shorter than the filaments; involucral bracts usually shorter than the inflorescence.
Fruits:
Capsules, rounded at the tops, about as long as the perianth segments or slightly longer; seeds spindle-shaped, about 0.4 mm long, lacking 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 alpinoarticulatus
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) |
1081 | 823 | 1212 |
| Slope
Gradient (%) |
4 | 0 | 17 |
|
Aspect (degrees) |
127 | 120 | 135 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 3 | 7 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
4 | ||
| Modal
BEC Zone Class |
IDF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
ESSF(1), IDF(2) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Lakeshores, riverbanks, gravel bars, bogs and marshes from the lowland to subalpine zones; infrequent throughout BC; circumpolar, N to AK, YT and NT, E to NF and S to ME, PA, IN, IL, IA, NE, CO, UT, ID and WA; Greenland, Eurasia.Status Information
Synonyms
Synonyms and Alternate Names:
Juncus alpinus
Juncus geniculatus