Juncus drummondii E. Mey.
Drummond's rush
Juncaceae (Rush family)
Introduction to Vascular Plants
Drummond's rush
Juncaceae (Rush family)
Introduction to Vascular Plants
SUBTAXA PRESENT IN BC
Species Information
General:
Perennial tufted herb from short rhizomes; stems wiry, erect, 15-40 cm tall.
Leaves:
Reduced to sheaths with short awns at the base of the stem, or the uppermost of the basal sheaths with blades less than 1 cm long.
Flowers:
Inflorescence a loose head with 1 to 4, nearly terminal flowers, appearing as if it is on the side of the stem; perianth segments green to brown, pointed, 5-7 mm long, the inner ones slightly shorter; stamens 6; anthers about 1.5 mm long, shorter than the filaments; involucral bract 1-3 cm long, cylindrical, resembling a continuation of the stem.
Fruits:
Capsules, cylindrical, notched, longer than the perianth segments; seeds spindle-shaped, 0.5 mm long with long, tail-like appendages at each end of the seed.
Notes:
Two varieties occur in W North America. Our BC material has been identified as var. drummondii but var. subtriflorus can be expected in S BC.
1. Capsules usually at least 1 mm longer than the perianth segments; perianth 5-6 mm long.................. var. subtriflorus (E. Mey.) C.L. Hitchc.
1. Capsules about equal to the perianth segments; perianth 6-7 mm long..................var. drummondii
USDA Species Characteristics
Flower Colour:
Brown
Blooming Period:
Summer
Fruit/Seed characteristics:
Colour: White
Present over the Summer
Source: The USDA
Ecology
Ecological Framework for Juncus drummondii
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) |
1939 | 32 | 2640 |
| Slope
Gradient (%) |
21 | 0 | 132 |
|
Aspect (degrees) |
154 | 0 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
4 | 0 | 8 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
817 | ||
| Modal
BEC Zone Class |
ESSF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
AT(74), BAFA(86), BG(1), CMA(40), CWH(1), ESSF(469), ICH(1), IDF(1), IMA(46), MH(31), MS(4), SBS(2), SWB(10) | ||
|
Source:
Klinkenberg 2013
|
|||