ID Features: |
Habit: Slender tufted to widely rhizomatous perennial.
Culms: Somewhat decumbent often rooting at the nodes, 30-90 cm. tall, grooved on one side,
glabrous to bearded at the nodes.
Blades: Flat to folded or revolute, slightly keeled with a very prominent midrib,
scabrous to thinly pilose, 2-20 cm. long, 1-4 mm. wide.
Sheaths: Slightly keeled, smooth.
Ligule: Membranous, fringed, about 1 mm. long.
Inflorescence: Short with 2-8 main branches, 2-6 cm. long, rachis internodes and margins of the pedicels long-villous.
Spikelets: Sessile spikelet 4-6 mm long, somewhat longer than the pedicel and rachis-joints,
scabrous, the twisted bent awn 8-15 mm. long. Pedicellate spikelet reduced to a single glume,
usually 2-3 mm. long, short-awned, spreading, the pedicel pilose.
Glumes: Of fertile (sessile) spikelet subequal, acuminate, the first dorsally flattened,
with a strong nerve near each margin, the midnerve faint; second thinner, keeled above,
scabrous on the keel, ciliate on margin.
Sterile lemma: Nearly as long as the glumes, acuminate.
Fertile lemma: Entire or 2-toothed at the apex, shorter than the sterile lemma,
with a twisted awn, 8-15 mm. long, bent about 3 mm. from the base.
Habitat: Prairies, plains, open woods, sand hills. July-September.
Use: Has been reseeded on croplands, particularly those areas with low fertility.
Only cultivars that have been selected for better palatability should be planted for grazing.
Remarks: This grass is usually less palatable than native species and will become a single species
stand in grazed pastures at the expense of the native grasses.
Synonyms: Bothriochloa ischaemum (L.) Keng var. ischaemum
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