Beckmannia syzigachne (Steud.) Fernald
American sloughgrass
Poaceae (Grass family)
Introduction to Vascular Plants
American sloughgrass
Poaceae (Grass family)
Introduction to Vascular Plants
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Species Information
General:
Annual grass often with stolons; stems erect, hollow, up to 100 cm tall.
Leaves:
Sheaths open; blades mostly 5-10 mm wide, flat; ligules 6-11 mm long, pointed, entire or commonly with jagged margins, usually folded back in growth, hairy.
Flowers:
Inflorescence of numerous, short, appressed to ascending, narrow, congested, racemose to paniculate spikes, up to 30 cm long, the spikes 1-2 cm long; spikelets 1-flowered, articulating below the glumes, unstalked, borne closely aggregated in 2 rows on one side of the rachis; glumes strongly compressed and inflated, semi-circular, 3-nerved, abruptly pointed, about 3 mm long; lemmas lanceolate, much narrower than the glumes, lightly 5-nerved, somewhat long-pointed, slightly larger than the 2-nerved paleas, 1.8-3.5 mm long; rachillas not prolonged; anthers 1-1.4 mm long; lodicules almost 1 mm long.
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 Beckmannia syzigachne
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) |
871 | 410 | 1250 |
| Slope
Gradient (%) |
0 | 0 | 15 |
|
Aspect (degrees) |
160 | 90 | 230 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
6 | 5 | 8 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
23 | ||
| Modal
BEC Zone Class |
IDF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BG(3), BWBS(5), IDF(12), SBPS(1), SBS(2) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Shores, marshes, wet meadows and ditches in the steppe and montane zones; frequent throughout BC east of the Coast-Cascade Mountains; N to AK, YT and NT, E to PQ and S to ME, MA, PA, OH, IL, MO, KS, NM, AZ and CA.Status Information
Synonyms
Synonyms and Alternate Names:
Beckmannia erucaeformis
Beckmannia erucaeformis var. uniflora
Beckmannia eruciformis auct. non (L.) Host
Beckmannia eruciformis subsp. baicalensis (Kusnez.) HultTn
Beckmannia eruciformis var. uniflora Scribn. ex Gray
Beckmannia syzigachne subsp. baicalensis (Kusnez.) Koyama & Kawano
Beckmannia syzigachne var. uniflora (Scribn. ex Gray) Boivin