Asteraceae
Rough thistle
Cirsium scabrum
- Family
- Asteraceae
- Genus
- Cirsium
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Common names
By language (1)
- English
- Rough thistle
Synonyms
- Carduus giganteus Desf.
- Carduus scaber Poir.
- Cirsium giganteum Spreng.
- Cirsium gigas Ucria
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: introduced
Photos
Photo: Rafael Cerpa, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Denis Barthel, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Denis Barthel, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Denis Barthel, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Denis Barthel, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Denis Barthel, CC BY-SA 4.0, from Wikimedia Commons
More in Cirsium
- Creeping thistleCirsium arvenseAsteraceae
- Spear thistleCirsium vulgareAsteraceae
- Marsh thistleCirsium palustreAsteraceae
- Cabbage thistleCirsium oleraceumAsteraceae
- Dwarf thistleCirsium acauleAsteraceae
- Woolly thistleCirsium eriophorumAsteraceae
- Melancholy thistleCirsium heterophyllumAsteraceae
- Cirsium rivulareAsteraceae
- Meadow thistleCirsium dissectumAsteraceae
- Yellow melancholy thistleCirsium erisithalesAsteraceae
- Cirsium spinosissimumAsteraceae
- Cirsium tuberosumAsteraceae
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.