Fabaceae
Marsh milkvetch
Astragalus pycnostachyus
- Family
- Fabaceae
- Genus
- Astragalus
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Common names
By language (1)
- English
- Marsh milkvetch
Synonyms
- Phaca pychnostachya (A.Gray) Rydb.
- Tragacantha pycnostachya (A.Gray) Kuntze
Flowers
- In flower
- May to September (from 93 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
Photos
FlowerPhoto: joergmlpts, CC BY 4.0, from iNaturalist 
FlowerPhoto: joergmlpts, CC BY 4.0, from iNaturalist 
FlowerPhoto: Bruce Homer-Smith, CC BY 4.0, from iNaturalist 
FlowerPhoto: Eric Knight, CC BY 4.0, from iNaturalist 
Photo: Eric in SF, CC BY-SA 3.0, from Wikimedia Commons 
Photo: dorian, CC BY 4.0, from iNaturalist 
Photo: Franco Folini from San Francisco, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Dee Shea Himes, CC BY 4.0, from iNaturalist 
Photo: Scott Yarger, CC0, from iNaturalist 
Photo: Marcus Tamura, CC0, from iNaturalist 
Photo: Leah Gardner, CC0, from iNaturalist 
Photo: joergmlpts, CC BY 4.0, from iNaturalist
More in Astragalus
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- Arenarious milk-vetchAstragalus arenariusFabaceae
- Alpine milkvetchAstragalus alpinusFabaceae
- Pallid milk vetchAstragalus frigidusFabaceae
- Astragalus boeticusFabaceae
- Mountain lentilAstragalus penduliflorusFabaceae
- Astragalus austriacusFabaceae
- Astragalus onobrychisFabaceae
- Indian milkvetchAstragalus australisFabaceae
- Astragalus alopecurusFabaceae
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.