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Plants › Sunflowers, Daisies, Asters, and Allies

Cobwebby Thistle

Cirsium occidentale

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Wildlife study photograph from iNaturalist.
(c) jessicaeblack, some rights reserved (CC BY-NC)

28 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

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Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in California.January 986, February 853, March 888, April 1,922, May 2,368, June 1,559, July 674, August 687, September 871, October 890, November 1,145, December 882.
California15,812
United States11,829
Nevada348
Oregon118
Mexico22
Baja California22
Arizona2

Counts show where people looked, not only where it lives.

Traits

Group and habits

  • Forb or herb growth formListed by a harvested source as having a forb or herbaceous growth form.USDA PLANTS Characteristics
  • Biennial plantListed by a harvested source as having a biennial life duration.USDA PLANTS Characteristics
  • Perennial plantListed by a harvested source as having a perennial life duration.USDA PLANTS Characteristics
  • Pollinator-associated plantDescends from a plant lineage commonly associated with pollinators.Inferred from its group

Classification

KingdomPlants · Plantae
PhylumVascular Plants · Tracheophyta
ClassDicots · Magnoliopsida
OrderSunflowers, Bellflowers, Fanflowers, and Allies · Asterales
FamilySunflowers, Daisies, Asters, and Allies · Asteraceae
GenusPlume Thistles · Cirsium

Sources

Remember the name next time.

Practise Cobwebby Thistle with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.

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