Asteraceae
Cirsium tracyi
- Family
- Asteraceae
- Genus
- Cirsium
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Synonyms
- Carduus acuatus Osterh.
- Carduus floccosus Rydb.
- Carduus tracyi Rydb.
- Cirsium acuatum (Osterh.) Cockerell
- Cirsium acuatum (Osterh.) Rydb.
- Cirsium acuatum (Osterh.) Petr.
- Cirsium floccosum (Rydb.) Petr.
- Cirsium floccosum (Rydb.) Rydb.
- Cirsium undulatum var. tracyi (Rydb.) S.L.Welsh
Photos
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, 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); popularity from Wikidata (2026-10-26, CC0 1.0). About our plant data.