Juncus interior Wiegand
inland rush
Juncaceae (Rush family)

Introduction to Vascular Plants

Photograph

© Frank Lomer     (Photo ID #27568)


Map

E-Flora BC Static Map

Distribution of Juncus interior
Click here to view the full interactive map and legend

Species Information

General:
Perennial, loosely tufted herb from fibrous roots; stems erect, 15-75 cm long.
Leaves:
Located on the lower 1/3 of the stem, narrow, flattened, lacking cross-walls; sheaths open, with short (not more than 1 mm long), wider than long, membranaceous to nearly so, whitish, opaque, ear-shaped lobes.
Flowers:
Inflorescence terminal, 5-15 cm long, the bracts ascending, longer than the inflorescence, perianth segments green, 3-4 mm long, pointed, the inner about the same length as the outer; stamens 6; anthers 0.4-0.6 mm long, shorter than the filaments.
Fruits:
Capsules, broadly rounded, 1-celled, about the same length as the perianth segments; seeds ellipsoid, about 0.4-0.7 mm long, lacking tail-like appendages.
Notes:
This is a member of the Juncus tenuis complex, whose taxonomy and distribution in BC has not been studied.

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.

USDA Species Characteristics

Flower Colour:
Green
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Brown
Present over the Summer
Source:  The USDA

Ecology

Ecological Framework for Juncus interior

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)
370 370 370
Slope Gradient (%)
0 0 0

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

0
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
7 7 7
Modal Nutrient Regime
Class
B
# of field plots
 species was recorded in:
1
Modal BEC Zone Class
CWH

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

CWH(1)

Habitat and Range

Dry to moist pastures, mostly on disturbed soil in the lowland, steppe and montane zones; infrequent in S BC; N to AK, YT and NT, E to PQ and NS and S to PA, TN, LA, TX, NM, AZ, ID and WA.

SourceThe Illustrated Flora of British Columbia