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Plants › Sunflowers, Daisies, Asters, and Allies

Slender Thistle

Carduus tenuiflorus

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Wildlife study photograph from iNaturalist.
(c) berardom, some rights reserved (CC BY)

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 Alaska.January 190, February 140, March 219, April 345, May 498, June 543, July 581, August 500, September 367, October 274, November 150, December 117.
United States4,575
Alaska3,923
California521
Portugal275
United Kingdom251
Spain245
Australia219
England209
France198
New Zealand152

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
  • Annual plantListed by a harvested source as having an annual 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
Genusplumeless thistles · Carduus

Sources

Remember the name next time.

Practise Slender 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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