Tags
- Achene
- Arthur Cronquist
- Asteraceae
- Asterales
- Asterids
- Binomial nomenclature
- Blooming
- Bract
- British Columbia
- California
- Carduus pycnocephalus
- Catalogue of Life
- Chaparral
- Cirsium
- Cirsium arvense
- Cirsium edule
- Cirsium vulgare
- Encyclopedia of Life
- Eudicots
- Flora of North America
- Flowering plant
- Germplasm Resources Information Network
- Global Biodiversity Information Facility
- Idaho
- INaturalist
- Inflorescence
- Integrated Taxonomic Information System
- International Plant Names Index
- Montana
- National Center for Biotechnology Information
- Natural Resources Conservation Service
- NatureServe
- New Zealand Plant Conservation Network
- North America
- Oregon
- Pappus
- Petiole
- Plant
- Protected area
- Pseudanthium
- Santa Lucia
- Santa Lucia Range
- Taxonomy
- The Plant List
- Thistle
- Tropicos
- Vascular plant
- Washington
- Wikidata
- Wikispecies
- Wildflowers
- World Register of Marine Species