Vascular Plants of North Carolina
Account for Pinebarrens Peanut-grass - Amphicarpum amphicarpon   (Pursh) Nash
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Members of Amphicarpum with account distribution info or public map:
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Section 5 » Family Poaceae
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Author(Pursh) Nash
DistributionSouthern and central portions of the Coastal Plain; not known north of the Roanoke River, though southeastern VA has a few records.

Coastal Plain, southeastern MA to southeastern SC.
AbundanceFrequent in the southern Coastal Plain east to Carteret and Craven counties; uncommon into the central Coastal Plain. Absent from the Sandhills proper. Despite it occurring in nearly 20 counties, including specimens from all of the southern ones, it is considered as a Watch List species.
HabitatWet pine savannas, wet flatwoods, seasonally ponded depressions, small Carolina bays (Scotland, Hoke, Cumberland counties); often associated with sphagnum moss. This annual species responds positively and quickly to fire.
PhenologyFlowering and fruiting August-October.
IdentificationThis species is mostly 1-2 feet tall, with the stem and leaves bristly-hairy, and the leaves ascending. The inflorescence is raised above the leaves, narrow and with short, nearly erect branches. Slender, below-ground rhizomes produce florets at their tips, which are fertile; above ground florets are sterile.
Taxonomic CommentsIn most older texts it is named as A. purshii Kunth.

Other Common Name(s)Pursh's Blue Maidencane, Hairy Maidencane, Blue Maidencane (used for both Amphicarpum species, and thus not suitable as a common name.
State RankS3
Global RankG4
State StatusW1
US Status
USACE-agcpFACW link
USACE-empFACW link
County Map - click on a county to view source of record.
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B.A. SorrieCroatan NF, site of hot fire less than 1 month prior, 1993 or 94. PenderPhoto_natural
B.A. SorrieHolly Shelter Game Land, 1995, recently burned savanna. PenderPhoto_natural
B.A. SorriePhoto taken 1990, natural depression pond on Nantucket Island, MA. Photo_non_NCPhoto_non_NC
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