Smooth False-buttonweed
Spermacoce glabra
Found in moist shores, bottomlands, riverside drawdowns, rocky riversides in the mountains, disturbed areas in the Coastal Plain. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you
Native to West Virginia. How scores work Is it native here?
Profile 88%
- Height
- Up to about 2 feet
- Light
- Partial shade, Full sun
- Soil moisture
- Dry to moist
No photograph yet. Looking for an old drawing…
At a glance
- Life cycle
- Perennial
- Bloom
- May to October
Not yet recorded · Spread · Leaves
County records are not available.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Floodplain and bottomland forests
Forests on low ground beside rivers and streams that flood from time to time.
Roadsides, fields and disturbed ground
Ground opened by people: roadsides, old fields, pastures, fencerows and lots.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in West Virginia. Shared habitat, not food. 107 animals.
- Northern CardinalCardinalis cardinalis
- Northern FlickerColaptes auratus
- Northern MockingbirdMimus polyglottos
- Purple FinchCarpodacus purpureus
- Red-tailed HawkButeo jamaicensis
- Red-winged BlackbirdAgelaius phoeniceus
- Rough-legged HawkButeo lagopus
- Sharp-shinned HawkAccipiter striatus
- Spotted SandpiperActitis macularius
- Tufted TitmouseBaeolophus bicolor
- Turkey VultureCathartes aura
- White-breasted NuthatchSitta carolinensis
- Willow FlycatcherEmpidonax traillii
- Wood DuckAix sponsa
- Yellow-breasted ChatIcteria virens
- Acadian FlycatcherEmpidonax virescens
- American Black DuckAnas rubripes
- American CrowCorvus brachyrhynchos
- American GoldfinchCarduelis tristis
- American RedstartSetophaga ruticilla
- Bald EagleHaliaeetus leucocephalus
- Bank SwallowRiparia riparia
- Belted KingfisherMegaceryle alcyon
- Bewick's WrenThryomanes bewickii
Who uses this plant?
3CaterpillarsGenus host records with ranges including WV
Genus host records with ranges including WV · Spermacoce
- Herpetogramma bipunctalisSouthern Beet Webworm, Two-Spotted Herpetogramma
- Spodoptera frugiperdaFall Armyworm Moth
- Spoladea recurvalisHawaiian Beet Webworm
25BeesSoutheastern regional records
Southeastern regional records · Spermacoce
Individual names are not available yet.
Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Rubiaceae
- Flower color
- White
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “May to October” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Flower color · “White” · Lady Bird Johnson Wildflower Center
- Height · “Up to about 2 feet” · Lady Bird Johnson Wildflower Center
- Life cycle · “Perennial” · Lady Bird Johnson Wildflower Center
- Light · “Partial shade; Full sun (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- primary_flower_color · “white” · Lady Bird Johnson Wildflower Center
- Soil · “Dry; Moist (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
Also known as
Smooth False Buttonweed
Conservation status
| West Virginia rank | SH |
|---|---|
| Global rank | G4G5 |
| WV status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- NatureServe Explorer
- USDA PLANTS
- Weakley, Flora of the Southeastern United States (2025)
- West Virginia occurrence source
- 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
























