Vascular Plants of North Carolina
Account for Southeastern Panicgrass - Coleataenia tenera   (Beyrich ex Trinius) Soreng
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Author(Beyrich ex Trinius) Soreng
DistributionSouthern Coastal Plain, and locally in the Sandhills; ranges north only to Moore Sampson, and Carteret counties.

Coastal Plain, NC to southern FL and southeastern TX; Mex., Bah., W.I., C.A.
AbundanceUncommon. Population size varies tremendously, depending on water levels and time since last fire. This is a Watch List species.
HabitatNatural depression meadows, depression ponds, clay-based Carolina bays, cypress savannas.
PhenologyFlowering and fruiting June-September.
IdentificationSoutheastern Panicgrass is unusual in its slender stems (almost wiry), slender leaves (maximum of 4 mm wide), leaves usually involute (rolled into a skinny cylinder), and skinny inflorescence (less than 1 cm wide).
Taxonomic CommentsIn older texts named as Panicum tenerum.

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.
Other Common Name(s)Bluejoint Panicgrass, Southeastern Cut-throat Grass
State RankS3
Global Rank[G4]
State StatusW1
US Status
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B.A. SorrieScotland County, 1992, Big Cypress Savanna Bay. ScotlandPhoto_natural
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