Sparganium natans L.
small bur-reed (small bur-reedl)
Sparganiaceae (Bur-reed family)
Introduction to Vascular Plants
small bur-reed (small bur-reedl)
Sparganiaceae (Bur-reed family)
Introduction to Vascular Plants
Species Information
General:
Perennial, aquatic herb from weak rhizomes; stems floating, 20-60 cm tall.
Leaves:
Alternate, limp, unkeeled, flat, floating, linear with sheathing bases, 40-60 cm long, 2-8 mm wide.
Flowers:
Inflorescence simple, of 1 to 3 female heads below and 1 male head above, the heads globe-shaped, the female heads 0.5-1.2 cm wide, axillary, sometimes borne above the leaf axils, usually unstalked or sometimes stalked below; perianth segments 6, attached near the top of the flower stalk; stigma 1; anthers less than 0.8 mm long.
Fruits:
Achenes, 2-4 mm long, barely or not constricted at the middle, beaked, the beaks 0.5-1.5 mm long, curved; seeds 1.
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 Sparganium natans
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) |
853 | 657 | 990 |
| Slope
Gradient (%) |
0 | 0 | 0 |
|
Aspect (degrees) |
0 | ||
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
7 | 7 | 8 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
14 | ||
| Modal
BEC Zone Class |
CWH | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
CDF(4), CWH(6), ICH(1), IDF(2), SBS(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Ponds, lakeshores and slow-moving streams in the lowland and montane zones; common throughout all but NW BC; circumpolar, N to AK, YT and NT, E to NF and S to ME, MA, NY, IN, MN, CO, AZ and CA; Eurasia.Status Information
Synonyms
Synonyms and Alternate Names:
Sparganium minimum (L.) Fr., nom. illeg.
Sparganium minimum Wallr.
Sparganium natans var. minimum L.
Sparganium nutans