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Plants › mustard family

field penny-cress

Thlaspi arvense

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

29 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 4,026, February 2,974, March 4,659, April 7,330, May 10,569, June 11,524, July 12,332, August 10,605, September 7,786, October 5,812, November 3,176, December 2,482.
United States105,875
Alaska83,275
Russia7,458
Canada7,453
Illinois2,504
Alberta2,466
Ontario2,325
Colorado2,052
British Columbia1,619
Wisconsin1,187

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

Traits

Group and habits

Edibility, toxicity and medicinal traits are records from datasets, not advice. Never eat, handle or use a wild species on the strength of an app.

Classification

KingdomPlants · Plantae
PhylumVascular Plants · Tracheophyta
ClassDicots · Magnoliopsida
OrderMustards, Capers, and Allies · Brassicales
Familymustard family · Brassicaceae
Genuspenny cresses · Thlaspi

Study it in a deck

Or build your own from the species near you.

Sources

Remember the name next time.

Practise field penny-cress 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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