Asteraceae
Prickly hawkweed
Hieracium horridum
- Family
- Asteraceae
- Genus
- Hieracium
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Common names
By language (1)
- English
- Prickly hawkweed
Synonyms
- Hieracium horridum subsp. horridum
- Hieracium horridum var. horridum
- Pilosella horrida (Fr.) F.W.Schultz & Sch.Bip.
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
Photos
Photo: Eric in SF, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Dcrjsr, CC BY 3.0, from Wikimedia Commons 
Photo: Dcrjsr, CC BY 3.0, from Wikimedia Commons 
Photo: Jim Morefield from Nevada, USA, CC BY-SA 2.0, from Wikimedia Commons
More in Hieracium
- Narrowleaf hawkweedHieracium umbellatumAsteraceae
- Wall hawkweedHieracium murorumAsteraceae
- Alpine hawkweedHieracium alpinumAsteraceae
- Smooth hawkweedHieracium laevigatumAsteraceae
- New England hawkweedHieracium sabaudumAsteraceae
- Hieracium amplexicauleAsteraceae
- Spotted hawkweedHieracium maculatumAsteraceae
- Hieracium schmidtiiAsteraceae
- Hieracium villosumAsteraceae
- Hieracium glaucinumAsteraceae
- HawkweedHieracium prenanthoidesAsteraceae
- Hieracium virosumAsteraceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.