Plants › Sunflowers, Daisies, Asters, and Allies

Rothrock's knapweed

Plectocephalus rothrockii

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 Arizona.January 5, February 4, March 5, April 7, May 7, June 3, July 4, August 27, September 17, October 3, November 3, December 4.
United States77
Arizona55
Mexico44
New Mexico21
Chihuahua20
Mexico8
Durango7
Sonora5
Sinaloa2
Kansas1

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

Traits

Group and habits

  • 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
GenusPlectocephalus

Study it in a deck

Or build your own from the species near you.

Sources

Remember the name next time.

Practise Rothrock's knapweed with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.