marsh bristlegrass (Setaria parviflora)
The following is a partial list of the many synonyms for Setaria
Cenchrus parviflorus Poir.
Chaetochloa geniculata (Lam.) Millsp. & Chase
Chaetochloa imberbis (Poir.) Scribn.
Panicum geniculatum Lam.
Setaria geniculata (Wild.) P. Beauv., nom. illeg.
Setaria geniculata (Lam.) P. Beauv. var. geniculata
Setaria geniculata (Lam.) P. Beauv. var. pauciseta Desv.
Setaria gracilis Kunth
Setaria gracilis Kunth var. gracilis
Setaria gracilis Kunth var. pauciseta (Desv.) B. Simon
TAXONOMY: The currently accepted scientific name for marsh
bristlegrass is Setaria parviflora (Poir.) Kerguélen.
NATIVE STATUS: Native, United States.
GENERAL BOTANICAL CHARACTERISTICS: Marsh bristlegrass
is perennial herb. Stems are 30 centimeters to well over one meter tall. It
has a stem base that is hard with knot-like swellings. The leaf blades are
up to 25 centimeters long and under a centimeter wide. The leaves are
whitish-green. Sheaths glabrous; ligules shorter than 1 mm, of hairs; blades
flat, scabrous above. The inflorescence is a compact, spikelike panicle up
to 8 or 10 centimeters long. The green spikelets are smaller than those of
many other species, only about 2.5mm long, or 3/32nds of an inch. Sur-
rounding each spikelet are up to 12 yellow or purple bristles. The bristles
bear very tiny barbs pointed outward, toward the bristle's tip. The bristles
stay on the stalk after the seeds drop away. Marsh bristlegrass has achene-
type fruits. The root system is rhizomatous with short, knotty rhizomes.
REGENERATION PROCESS: Marsh bristlegrass propogates itself by
HABITAT TYPES: Moist, disturbed areas, roadsides, streambanks, canal
banks. It also can grow in salty habitats such as salt marshes.
SITE CHARACTERISTICS: Marsh bristlegrass has a strong prefernce
for moist sites.
SEASONAL DEVELOPMENT: Marsh bristlegrass flowers and seeds
from July to September.
GENERAL DISTRIBUTION: Marsh bristlegrass is found throughout
most the United States with the exceptions of the northern New England
states, and the upper Plains and upper Rocky Mountain states.
SKY MEADOWS DISTRIBUTION:
Grass specimens can be found on trails marked in red.
Appalachian Trail/Old Trail
South Ridge/North Ridge
Rolling Meadows/ Lost Mountain
The specific distribution of marsh bristlegrass has not been determined.
IMPORTANCES AND USES: The small grains dropped by all the foxtail species are favored by birds who forage on the ground, especially sparrows.
Rodents may also consume the seeds.
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Sky Meadows Park
Crooked Run Valley