Brassicaceae
Little western bittercress
Cardamine oligosperma
- Family
- Brassicaceae
- Genus
- Cardamine
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Common names
By language (1)
- English
- Little western bittercress
Synonyms
- Cardamine acuminata (Nutt.) Rydb.
- Cardamine bracteata (O.E.Schulz) Suksd.
- Cardamine hirsuta subsp. oligosperma (Nutt.) O.E.Schulz
- Cardamine hirsuta var. bracteata O.E.Schulz
- Cardamine lucens (G.S.Torr.) Suksd.
- Cardamine oligosperma var. bracteata (O.E.Schulz) G.S.Torr.
- Cardamine oligosperma var. lucens G.S.Torr.
- Cardamine oligosperma var. oligosperma Nutt.
- Cardamine oligosperma var. unijuga (Rydb.) G.S.Torr.
- Cardamine unijuga Rydb.
Flowers
- In flower
- February to May (from 55 flowering iNaturalist observations worldwide)
- Flower colour
- white (USDA PLANTS Database)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Annual, Biennial, Perennial
- In the US and Canada
- Alaska: native, Canada: native, Lower 48 states: native
Photos
FlowerPhoto: Kieran Hanrahan, CC BY 4.0, from iNaturalist 
FlowerPhoto: Michael Warner, CC BY 4.0, from iNaturalist 
FlowerPhoto: Amelia Tauber, CC BY 4.0, from iNaturalist 
FlowerPhoto: Alex Abair, CC BY 4.0, from iNaturalist 
FruitPhoto: Alex Abair, CC BY 4.0, from iNaturalist 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY 2.5, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY 2.5, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY 2.5, from Wikimedia Commons 
Photo: Don Loarie, CC BY 4.0, from iNaturalist 
Photo: Walter Siegmund, CC BY 2.5, from Wikimedia Commons 
Photo: Ken-ichi Ueda, CC BY 4.0, from iNaturalist
More in Cardamine
- Cuckoo flowerCardamine pratensisBrassicaceae
- Hairy bittercressCardamine hirsutaBrassicaceae
- Woodland bittercressCardamine flexuosaBrassicaceae
- Narrowleaf bittercressCardamine impatiensBrassicaceae
- Cardamine amaraBrassicaceae
- Coralroot bittercressCardamine bulbiferaBrassicaceae
- Sand bittercressCardamine parvifloraBrassicaceae
- Cardamine resedifoliaBrassicaceae
- Cardamine lyrataBrassicaceae
- Cardamine trifoliaBrassicaceae
- Drooping bittercressCardamine enneaphyllosBrassicaceae
- Cutleaf toothwortCardamine concatenataBrassicaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.