Sparganium eurycarpum Engelm.
broad-fruited bur-reed (broadfruit bur-reed)
Sparganiaceae (Bur-reed family)
Introduction to Vascular Plants
broad-fruited bur-reed (broadfruit bur-reed)
Sparganiaceae (Bur-reed family)
Introduction to Vascular Plants
Species Information
General:
Perennial, aquatic herb from long rhizomes; stems erect and emergent, 60-120 (200) cm tall.
Leaves:
Alternate, stiff, emergent, erect, keeled at the base, flat at the tips, linear, 20-80 cm long, 8-20 mm wide.
Flowers:
Inflorescence branched, of 1 or 2 female heads below and 5 to12 male heads above, the heads globe-shaped, unstalked, the female heads 2-2.6 cm wide, at least some borne above the leaf axils and subtended by conspicuous leaflike bracts; perianth segments 6, spoonlike, attached near the top of the flower stalk; stigmas 2 (rarely 1); anthers about 1-1.2 mm long.
Fruits:
Achenes, top-shaped, 3-5 mm wide, 5-10 mm long, unstalked, beaked, the beaks 2-4 mm long, straight; seeds usually 2.
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
USDA Species Characteristics
Flower Colour:
Green
Blooming Period:
Indeterminate
Fruit/Seed characteristics:
Colour: Green
Present from Spring to Fall
Source: The USDA
Ecology
Ecological Framework for Sparganium eurycarpum
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) |
|||
| Slope
Gradient (%) |
1 | 0 | 2 |
|
Aspect (degrees) |
0 | ||
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 4 | 6 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
4 | ||
| Modal
BEC Zone Class |
CDF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
CDF(2), CWH(2) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Wet meadows, shallow ponds and lakeshores in the lowland, steppe and montane zones; infrequent in S and E BC; N to NT, E to NF and S to ME, MA, PA, NY, VA, KY, MO, OK, NM, AZ, CA and MX.Status Information
Synonyms
Synonyms and Alternate Names:
Sparganium californicum Greene
Sparganium eurycarpum subsp. eurycarpum Engelm. [superfluous autonym]
Sparganium eurycarpum var. greenei