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Stiff Aster

Ionactis linariifolia

Found in pine savannas; sandhills; pine flatwoods; cliffs, ledges and rocky summits; roadsides, fields and disturbed ground; forest edges and thickets; forests and woodlands. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you

52
Strong

Native to Mississippi (estimated). How scores work Is it native here?

Profile 100%

Height
1–2 feet
Spread
6 inches–1 foot
Light
Full sun, Partial shade
Soil moisture
Dry to average

Space about 1 ft apart from its recorded spread, about 100 per 100 sq ft. Enter your bed size for a count

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At a glance

Life cycle
Perennial
Leaves
Deciduous
Bloom
July to November

Recorded in 19 Mississippi counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 7

Forest edges and thickets

Wooded scene looking out over partially open fields
Named place / source context. Shown: Chickamauga and Chattanooga National Military Park, Georgia and Tennessee; which part is not recorded, a neighboring state.Wooded scene looking out over partially open fields, Richard Schlecht, undated. Public domain. Source record.

Pine savannas

Open, fire-kept longleaf pine stands over grasses and wildflowers on wet to moist sandy soil.

Sandhills

Dry, deep-sand ridges with longleaf pine and turkey oak, kept open by fire.

Pine flatwoods

Flat, sandy Coastal Plain pine woodlands, wetter than sandhills and denser than savannas.

Cliffs, ledges and rocky summits

Cliffs, ledges, rock outcrops, talus and rocky summits where the source does not name the rock. A named rock files the place under its own glade or outcrop type instead.

Roadsides, fields and disturbed ground

Ground opened by people: roadsides, old fields, pastures, fencerows and lots.

Forests and woodlands

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

All habitats

Ecological relationships

Who uses this plant?

What these records mean

1CaterpillarsGenus host records with ranges including MS

Genus host records with ranges including MS · Ionactis

  • Schinia septentrionalisNorthern Flower Moth
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
54BeesSoutheastern regional records

Southeastern regional records · Aster

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
25Specialist beesPollen specialists

Pollen specialists · Aster

  • Andrena asteris
  • Andrena braccata
  • Andrena chromotricha
  • Andrena fulvipennis
  • Andrena hirticincta
  • Andrena nubecula
  • Andrena placata
  • Andrena simplex
  • Ashmeadiella bucconis
  • Colletes americanus
Show all 25
  • Colletes compactus
  • Colletes speculiferus
  • Dianthidium curvatum
  • Melissodes denticulatus
  • Melissodes dentiventris
  • Melissodes druriellus
  • Melissodes illatus
  • Melissodes niveus
  • Melissodes subillatus
  • Melissodes trinodis
  • Melissodes wheeleri
  • Paranthidium jugatorium
  • Perdita octomaculata
  • Protandrena citripes
  • Protandrena compositarum
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
3BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Aster

  • Alectoris chukarChukar
  • Bonasa umbellusRuffed Grouse
  • Centrocercus urophasianusGreater Sage-Grouse
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

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

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

Growing and identification

Plant details

Family
Asteraceae
Hardiness
Zones 4a–9b
Soil pH
Acidic
Flower color
Blue, pink, purple or white

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

Growing sources and scope
Also known as

Ankle Aster; Aster linariifolius; Ionactis linariifolius; Stiff Leaf Aster; aster

Conservation status

Mississippi rankSNR
Global rankG5
MS statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources