Vascular Plants of North Carolina
Account for Yellow Bristlegrass - Setaria pumila   (Poiret) Roemer & Schultes
Members of Poaceae:
Members of Setaria with account distribution info or public map:
Google Images
Section 5 » Order Cyperales » Family Poaceae
Author(Poiret) Roemer & Schultes
DistributionScattered across the state, with gaps.

Native of Europe; in N.A. throughout the U.S. and southern Canada.
AbundanceUncommon throughout.
HabitatRoadsides, fallow fields, clearings, powerlines, interdune flats.
PhenologyFlowering and fruiting July-October.
IdentificationYellow Bristlegrass stands out due to its dull yellow bristles (vs. pale yellow or whitish in S. parviflora). It is annual, whereas the latter is perennial from knotty rhizomes.
Taxonomic CommentsThe inflorescences of bristlegrasses look like bottlebrushes, due to the numerous bristles that stick out sideways or that angle upward. Two of our 3 native species are annuals; S. parviflora is perennial. When using keys, make sure to have mature fruiting plants and a dissecting scope to see such features as the surface texture on lemmas, number of bristles per spikelet, etc.
Other Common Name(s)Yellow Foxtail
State RankSE
Global RankGNR
State Status
US Status
USACE-agcpFAC link
USACE-empFAC link
County Map - click on a county to view source of record.
Photo Gallery
photographercommentsphoto_linkcountyobsType
B.A. SorriePiedmont, edge of crop field, Sept 2014. MoorePhoto_non_natural
Select a source
AllHerbaria
Individual
Select an occurrence type
AllCollection_non_naturalPhoto_non_naturalOther_non_natural