Brassicaceae
Mountain tansymustard
Descurainia incana
- Family
- Brassicaceae
- Genus
- Descurainia
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Common names
By language (3)
- English
- Mountain tansymustard
- nv
- Ostseʼtsoh
- Swedish
- Grått stillfrö
Synonyms
- Descurainia incana subsp. procera (Greene) Kartesz & Gandhi
- Descurainia incana var. brevipes (Nutt. ex Torr. & A.Gray) S.L.Welsh
- Descurainia incana var. macrosperma (O.E.Schulz) Dorn
- Descurainia incana var. major (Hook.) Dorn
- Descurainia richardsonii O.E.Schulz
- Descurainia richardsonii subsp. procera (Greene) Detling
- Descurainia richardsonii var. alpestris (Cockerell) O.E.Schulz
- Descurainia richardsonii var. brevipes (Torr. & A.Gray) S.L.Welsh & Reveal
- Descurainia richardsonii var. macrosperma O.E.Schulz
- Descurainia richardsonii var. procera (Greene) Breitung
- Sisymbrium canescens var. alpestre Cockerell
- Sisymbrium canescens var. brevipes Nutt.
- Sisymbrium canescens var. major Hook.
- Sisymbrium incanum Bernh. ex Fisch. & C.A.Mey.
- Sisymbrium procerum (Greene) K.Schum.
- Sisymbrium richardsonii Sweet
- Sophia brevipes Rydb.
- Sophia procera Greene
- Sophia richardsoniana (Sweet) Rydb.
- Sophia richardsonii Rydb.
Flowers
- In flower
- June to August (from 21 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Annual, Biennial, Perennial
- In the US and Canada
- Alaska: native, Canada: native, Lower 48 states: native
Photos
FlowerPhoto: Syd Cannings, CC BY 4.0, from iNaturalist 
FlowerPhoto: Syd Cannings, CC BY 4.0, from iNaturalist 
FlowerPhoto: Syd Cannings, CC BY 4.0, from iNaturalist 
Photo: Dean Wm. Taylor, CC BY 2.0, from Wikimedia Commons 
Photo: Craig Martin, CC0, from iNaturalist 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons
More in Descurainia
- Herb sophiaDescurainia sophiaBrassicaceae
- Descurainia bourgaeanaBrassicaceae
- Descurainia tanacetifoliaBrassicaceae
- Western tansymustardDescurainia pinnataBrassicaceae
- California tansy-mustardDescurainia californicaBrassicaceae
- Descurainia gilvaBrassicaceae
- Descurainia gonzaleziiBrassicaceae
- Descurainia lemsiiBrassicaceae
- Descurainia millefoliaBrassicaceae
- Northern tansymustardDescurainia sophioidesBrassicaceae
- Descurainia artemisioidesBrassicaceae
- Blunt tansymustardDescurainia obtusaBrassicaceae
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.