Vascular Plants of North Carolina
Account for Beaked Panicgrass - Coleataenia anceps ssp. anceps   (Michaux) Soreng
Members of Poaceae:
Members of Coleataenia with account distribution info or public map:
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Section 5 » Family Poaceae
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Author(Michaux) Soreng
DistributionThroughout the state, but apparently uncommon in Mountains.

NJ and IL south to FL and TX.
AbundanceFrequent to common in Coastal Plain and Piedmont; uncommon in Mountains.
HabitatA wide variety of habitats, from dry to permanently moist or wet, from open to forested, including roadsides and other disturbed soils.
PhenologyFlowering and fruiting July-October.
IdentificationBeaked Panicgrass stems grow 1.5-2.5 feet tall; with the upper half devoid of leaves and with a terminal, open inflorescence. The near-identical subspecies rhizomata differs by narrower and longer rhizomes (no measurements available), shorter spikelets (2.3-2.9 mm vs. 2.7-3.9), and restriction to Coastal Plain.
Taxonomic CommentsIn older texts Panicum anceps var. anceps.

Members of the genus Coleataenia have been split from Panicum by the subsessile spikelets (nearly stalkless, vs. stalk greater than 2 mm long) and spikelets which grow only on one side of each branch (vs. essentially on all sides). C. anceps and C. rigidula have lower stems relatively flattened, unlike Panicum.
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