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Alabama Rosinweed

Silphium asperrimum

In the Carolinas and Georgia, found in prairies and woodlands. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you

55
Strong

Native to Louisiana. How scores work Is it native here?

Profile 76%

Light
Partial shade, Full sun
Soil moisture
Dry to moist
Will it fit your yard?

At a glance

Bloom
May to October

Not yet recorded · Height · Spread · Life cycle · Leaves

This plant is missing most of its facts, so Quercus is looking them up in old botany books.

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.

1 of 2

Forests and woodlands

Forest or woodland where the source does not say how moist or dry.

Prairies and grasslands

Open, grass-dominated places kept open by fire, grazing or thin soil, from tallgrass prairie to Piedmont prairies.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

3CaterpillarsGenus host records with ranges including LA

Genus host records with ranges including LA · Silphium

  • Eucosma giganteanaGiant Eucosma
  • Papaipema baptisiaeWild Indigo Borer, Indigo Stem Borer
  • Papaipema nebrisStalk Borer
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
36BeesSoutheastern regional records

Southeastern regional records · Silphium

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 4.0
7Specialist beesPollen specialists

Pollen specialists · Silphium

  • Dianthidium curvatum
  • Dieunomia heteropoda
  • Megachile parallela
  • Melissodes dentiventris
  • Melissodes vernoniae
  • Melissodes wheeleri
  • Paranthidium jugatorium
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
—BirdsRecorded genus food-resource interactions; not a state feeding claim

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Asteraceae

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope

Conservation status

Louisiana rankSNR
Global rankNot available
LA statusNot verified
Federal statusNot verified

Conservation source

In your garden

Will it fit your yard?

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How to check your spot

Sources