Yellow Bristlegrass
Setaria pumila
Found in disturbed areas, lawns, fields, less commonly in natural habitats. FloraQuest, phone app (app page) What its natural habitat tells you
—
Not native
Not native to Florida. How scores work Is it native here?
Profile 82%
- Height
- About 3 feet
- Light
- Full sun
- Soil moisture
- Somewhat dry to moist
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At a glance
- Life cycle
- Annual
- Bloom
- June to October
- Fruiting season
- Fall to winter
JFMAMJJASOND
Not yet recorded · Spread · Leaves
Recorded in 24 Florida counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Roadsides, fields and disturbed ground
Ground opened by people: roadsides, old fields, pastures, fencerows and lots.
Ecological relationships
Who uses this plant?
9CaterpillarsGenus host records with ranges including FL
Genus host records with ranges including FL · Setaria
- Ancyloxypha numitorLeast Skipper
- Cymaenes tripunctusThree-Spotted Skipper
- Dargida diffusaWheat Head Armywotm Moth
- Helicoverpa zeaCorn Earworm Moth
- Hypena scabraGreen Cloverworm Bomolocha, Black Snout
- Lerema acciusClouded Skipper, Corn Leaf tier
- Lerodea eufalaEufala Skipper, Gray Skipper, Rice Leafroller
- Mythimna unipunctaArmyworm Moth, White Speck
- Spodoptera frugiperdaFall Armyworm Moth
—BeesSoutheastern regional records
—Specialist beesPollen specialists
33BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Setaria
- Acanthis flammeaCommon Redpoll
- Agelaius phoeniceusRed-winged Blackbird
- Ammospiza leconteiiLeConte's Sparrow
- Anser albifronsGreater White-fronted Goose
- Anthus rubescensAmerican Pipit
- Branta canadensisCanada Goose
- Calcarius lapponicusLapland Longspur
- Calcarius ornatusChestnut-collared Longspur
- Calcarius pictusSmith's Longspur
- Callipepla californicaCalifornia Quail
Show all 33
- Colinus virginianusNorthern Bobwhite
- Columbina passerinaCommon Ground Dove
- Cyrtonyx montezumaeMontezuma Quail
- Dolichonyx oryzivorusBobolink
- Eremophila alpestrisHorned Lark
- Melospiza melodiaSong Sparrow
- Molothrus aterBrown-headed Cowbird
- Passer domesticusHouse Sparrow
- Peucaea aestivalisBachman's Sparrow
- Plectrophenax nivalisSnow Bunting
- Pooecetes gramineusVesper Sparrow
- Porzana carolinaSora
- Quiscalus quisculaCommon Grackle
- Rallus limicolaVirginia Rail
- Rhynchophanes mccowniiMcCown's Longspur
- Sialia sialisEastern Bluebird
- Spizella passerinaChipping Sparrow
- Spizella pusillaField Sparrow
- Sturnus vulgarisEuropean Starling
- Turdus migratoriusAmerican Robin
- Tympanuchus phasianellusSharp-tailed Grouse
- Tyrannus tyrannusEastern Kingbird
- Zenaida macrouraMourning Dove
Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening
Growing and identification
Plant details
- Family
- Poaceae
- Soil pH
- Acidic to neutral
- Flower color
- White
- Growth rate
- Rapid
- Growth habit
- Grows in clumps
- Foliage color
- Green
- Fruit begins
- Fall
- Fruit ends
- Winter
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “June to October” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
- Flower color · “White” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Foliage color · “Green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Fruit begins · “Fall” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Fruit ends · “Winter” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Growth habit · “Grows in clumps” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Growth rate · “Rapid” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Height · “About 3 feet” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
- Life cycle · “Annual” · NC Extension Plant Toolbox
- Light · “Full sun (6 or more hours of direct sunlight a day)” · NC Extension Plant Toolbox
- Soil · “Moist; Occasionally dry” · NC Extension Plant Toolbox
- Soil pH · “Acidic to neutral” · NC Extension Plant Toolbox
Also known as
Setaria glauca
Conservation status
| Florida rank | Not available |
|---|---|
| Global rank | GNR |
| FL status | Not verified |
| Federal status | Not verified |
Sources
- Atlas of Florida Plants
- USDA PLANTS
- FloraQuest: Carolinas, Georgia (Weakley), phone app (app page)
- FloraQuest: Florida (Weakley), phone app (app page)
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications