Vascular Plants of North Carolina
Account for Rough Dropseed - Sporobolus clandestinus   (Biehler) A.S. Hitchcock
Members of Poaceae:
Members of Sporobolus with account distribution info or public map:
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Section 5 » Order Cyperales » Family Poaceae
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Author(Biehler) A.S. Hitchcock
DistributionPiedmont, Sandhills, and Coastal Plain; scarce on the Outer Banks.

MA to WI, IA, and KS, south to FL and TX.
AbundanceInfrequent to fairly common in the eastern and southern Piedmont, Sandhills, and much of the western Coastal Plain; uncommon in the eastern and central Coastal Plain, except rare on the Outer Banks.
HabitatDry to mesic soils of pine-hardwood woodlands, rocky slopes, glades, Longleaf Pine loamy flats and pea swales, loamy soil savannas and flatwoods. Typically in thin soil.
PhenologyFlowering and fruiting August-October.
IdentificationEasy to overlook, Rough Dropseed looks like a slender stick 2-4 feet tall. The relatively few leaves are narrow and about a foot long, often browned by flowering time. The narrow inflorescence is usually only partly exposed, thus the Latin name, and 3-5 inches long. Each spikelet is 6-8 mm long.
Taxonomic CommentsNone

Recent molecular research suggests that Calamovilfa and Spartina are nested deeply within Sporobolus. Weakley (2020) proposes that they remain split until a long-term solution is found, as their members are monophyletic.
Other Common Name(s)None
State RankS4
Global RankG5
State Status
US Status
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Photo Gallery
B.A. SorrieRoadside, US 15-501, Oct 2014. ScotlandPhoto_natural
B.A. SorrieSandhills Game Land, loamy bean dip, Sept 1996. ScotlandPhoto_natural

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