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Rattlesnake Hawkweed

Hieracium venosum

Found in dry forests, woodland margins, roadsides. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you

35
Good

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

Profile 94%

Height
Up to about 1.5 feet
Light
Partial shade, Full shade, Full sun
Soil moisture
Dry to moist
Will it fit your yard?

At a glance

Life cycle
Perennial
Bloom
April to September

Not yet recorded · Spread · Leaves

Recorded in 100 Virginia counties.

Natural habitats

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

1 of 3

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.

Dry forests and woodlands

Forests and open woodlands on dry ridges and slopes, often oak or pine.

Roadsides, fields and disturbed ground

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

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Virginia. Shared habitat, not food. 123 animals.

All wildlife of Virginia

Ecological relationships

Who uses this plant?

What these records mean

2CaterpillarsGenus host records with ranges including VA

Genus host records with ranges including VA · Hieracium

  • Cucullia floreaGray Hooded Owlet
  • Oxyptilus delawaricus
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
6BeesSoutheastern regional records

Southeastern regional records · Hieracium

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
0Specialist beesPollen specialists
2BirdsRecorded genus food-resource interactions; not a state feeding claim

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

  • Bonasa umbellusRuffed Grouse
  • Pinicola enucleatorPine Grosbeak
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
Flower color
Yellow

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

Growing sources and scope
Also known as

Rattlesnake Weed

Conservation status

Virginia rankS5
Global rankG5
VA statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources