| SMOOTH
BROMEGRASS--Bromus inermis |
| Description: Smooth bromegrass
is a perennial cool-season sod grass with vigorous rhizomes.
Flowering culms may reach 4 feet tall. Spikelets have several
florets and are borne in panicles that open with maturity. Leaves
are many, flat, mostly basal, smooth, and shiny. An M-shaped
constriction about two thirds up the leaf blade is a key identifying
characteristic that is shared with other bromegrasses and reed
canarygrass. Leaf sheaths are closed and tubular, open only near the
top. |
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| Distribution, habitat: A native
of the Old World, smooth bromegrass was introduced in 1884 and now is
naturalized in the northern two thirds of the United States and adjacent
areas of Canada. Smooth bromegrass is widely cultivated as hay,
silage, and pasture. Although it grows best in areas having 18
inches or more precipitation, it is found statewide in planted fields,
roadsides, and waste areas, often invading native grasslands. |
| Comments: Smooth
bromegrass, or smooth brome, the most commonly planted forage in South
Dakota, is palatable and of good quality. It is to central and
eastern South Dakota what crested wheatgrass is to the western part.
Smooth bromegrass requires high nitrogen levels to remain productive; when
grown with alfalfa this need is reduced. Some smooth bromegrass
selections are drought resistant like 'Cottonwood,'; others, like
'Carlton' and 'Barton,' are recognized as northern strains; 'Blair,'
'Lincoln,' and 'Rebound' are southern types, while 'Magna' is
intermediate. Each has unique characteristics with various
suitabilities for establishment ease, erosion control, high yields,
drought tolerance, or regrowth ability. Smooth bromegrass fields can
provide high quality nesting sites and wildlife protection. |
| Picture and information can be
found on pages 22 and 23 of Grassland Plants of South Dakota and the
Northern Great Plains, by James R. Johnson and Gary E. Larson.
Published in 1999 by South Dakota State University, Brookings, SD. |
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