Variety

Cirsium occidentale candidissimum (Snowy thistle)

Cirsium occidentale candidissimum. Photo: (c) Todd Ramsden, some rights reserved (CC BY-NC)

iNaturalist • Wikipedia

Cirsium occidentale, with the common name cobweb thistle or cobwebby thistle, is a North American species of thistle in the sunflower family.

Humboldt Life
- Kingdom: Plantae (Plants)
  - Phylum: Tracheophyta (Vascular plants)
    - Subphylum: Angiospermae (Flowering plants)
      - Class: Magnoliopsida (Dicots)
        Order: Asterales (Sunflowers, bellflowers, fanflowers, and allies)
        Family: Asteraceae (Sunflowers, daisies, asters, and allies)
        Subfamily: Carduoideae (Thistles and allies)
        Tribe: Cardueae
        Subtribe: Carduinae (Thistles and burdocks)
        Genus: Cirsium (Plume thistles)
        Species: Cirsium occidentale (Cobwebby thistle)
        Variety: Cirsium occidentale candidissimum (Snowy thistle)

Sightings

Where in Humboldt

Discussion

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