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Starry Rosinweed

Silphium asteriscus

51
Strong

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

Profile 88%

Height
2–5 feet
Spread
1.5–3 feet
Light
Deep shade, Full sun, Partial shade
Soil moisture
Somewhat dry to moist

Space about 2 ft apart from its recorded spread, about 25 per 100 sq ft. Enter your bed size for a count

Will it fit your yard?

At a glance

Life cycle
Perennial
Leaves
Deciduous
Bloom
Summer

Recorded in 57 Alabama counties.

Ecological relationships

Who uses this plant?

What these records mean

3CaterpillarsGenus host records with ranges including AL

Genus host records with ranges including AL · 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
Hardiness
Zones 4a–8b
Flower color
Yellow

What its natural habitat tells you

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

Growing sources and scope

Conservation status

Alabama rankNot available
Global rankG5
AL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your yard?

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How to check your spot

Sources