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American Sloughgrass - Beckmannia syzigachne
Native Species
Global Rank:
G5
State Rank:
S4
C-value:
4
Agency Status
USFWS:
USFS:
BLM:
External Links
General Description
Cool season, annual bunchgrass. Stems few-many-bunched, 10–80 cm. Leaves: blades 4–10 mm wide, flat and lax; sheaths with overlapping margins; ligule membranous. Inflorescences a contracted secund panicle 5–30 cm long. Spikelets with 1 floret, circular, strongly laterally flattened, 2.5–3 mm long; glumes 1 nerved, strongly laterally compressed. Lemmas with an apiculate tip (approaching a very short awn in some spikelets); palea well developed. Disarticulation below glumes; dispersal unit the spikelet (Lavin in
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Species Range
Montana Range
Range Descriptions
Native
Range Comments
Throughout most of North America except in the southeast (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations: 147
(Click on the following maps and charts to see full sized version)
Map Help and Descriptions
Relative Density
Recency
(Observations spanning multiple months or years are excluded from time charts)
Habitat
Wet meadows, along ditches, streams, and lake banks, often rooted below water level (Lavin in
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Stewardship Responsibility
References
- Literature Cited AboveLegend:
View Online Publication- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
Boggs, K. W. 1984. Succession in riparian communities of the lower Yellowstone River, Montana. M.S. Thesis. Montana State University, Bozeman, 107 pp.- Brey, C.W. 1998. Epidemiology of wheat curl mite (Aceria tosichella K.) and wheat streak mosaic virus on feral grass species and effect of glyphosate on wheat curl mite dispersal. Ph.D. Dissertation. Bozeman, MT: Montana State University. 136 p.
- Culver, D.R. 1994. Floristic analysis of the Centennial Region, Montana. M.Sc. Thesis. Montana State University, Bozeman. 199 pp.
- Eggers, M.J.S. 2005. Riparian vegetation of the Montana Yellowstone and cattle grazing impacts thereon. M.Sc. Thesis. Montana State University, Bozeman, MT. 125 p.
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
- Meier, G.A. 1997. The colonization of Montana roadsides by native and exotic plants. M.Sc. Thesis. Bozeman, MT: Montana State University. 45 p.
- Mundinger, J.G. 1975. The influence of rest-rotation grazing management on waterfowl production on stock-water reservoirs in Phillips County, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 100 p.
- Murphy, C.Y. 2016. Chemical control and disease reservoir studies of the wheat curl mite (Aceria tosichella Keifer) vector to wheat streak mosaic virus. M.Sc. Thesis. Bozeman, MT: Montana State University. 75 p.
- Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
- Sater, S. 2022. The insects of Sevenmile Creek, a pictorial guide to their diversity and ecology. Undergraduate Thesis. Helena, MT: Carroll College. 242 p.
- Web Search Engines for Articles on "American Sloughgrass"
