LeavesBasal leaves alternate, simple, heart-shaped, large lobes, 0.5-12.5 cm long, 1-19 cm wide, margins toothed or crenate, petioles 20-40 cm long; stem leaves, alternate, sessile, kidney-shaped, smaller than basal leaves, margins crenate to entireFlowersInflorescence solitary or umbel-like, 2 to 7 flowers; flowers radially symmetric, 1.5 - 4 cm wide; sepals 5-9, distinct, 10-25 mm long, broadly egg-shaped or elliptic, yellow or orange, petaloid; petals absent; stamens many, yellow; pistils 4-15, ovary superiorFruits and SeedsAggregate of follicles, ellipsoid, 8-15 mm long, 3-4.5 mm wide, born in clusters of 4-15, 9-12 seeds per follicle; seeds greenish, elliptic, 1.5-2.5 mm
Scientific NameCaltha palustris L.
Common Name
marsh marigold, yellow marsh marigold
General Description
Perennial herb; stems leafy, erect, 20- 60 cm, green, hollow, ascending or decumbentLeaves
Basal leaves alternate, simple, heart-shaped, large lobes, 0.5-12.5 cm long, 1-19 cm wide, margins toothed or crenate, petioles 20-40 cm long; stem leaves, alternate, sessile, kidney-shaped, smaller than basal leaves,…
Basal leaves alternate, simple, heart-shaped, large lobes, 0.5-12.5 cm long, 1-19 cm wide, margins toothed or crenate, petioles 20-40 cm long; stem leaves, alternate, sessile, kidney-shaped, smaller than basal leaves, margins crenate to entire
Flowers
Inflorescence solitary or umbel-like, 2 to 7 flowers; flowers radially symmetric, 1.5 - 4 cm wide; sepals 5-9, distinct, 10-25 mm long, broadly egg-shaped or elliptic, yellow or orange, petaloid; petals absent; stamens…
Inflorescence solitary or umbel-like, 2 to 7 flowers; flowers radially symmetric, 1.5 - 4 cm wide; sepals 5-9, distinct, 10-25 mm long, broadly egg-shaped or elliptic, yellow or orange, petaloid; petals absent; stamens many, yellow; pistils 4-15, ovary superior
Fruits and Seeds
Aggregate of follicles, ellipsoid, 8-15 mm long, 3-4.5 mm wide, born in clusters of 4-15, 9-12 seeds per follicle; seeds greenish, elliptic, 1.5-2.5 mm
Phenology
Flowers from April to July
Notes
Medical uses: Leaves are poisonous, containing helliborine and protoanemonin; they must be boiled in three changes of water before eating. Chemicals in the sap may cause severe skin irritation, but historically, the…
Medical uses: Leaves are poisonous, containing helliborine and protoanemonin; they must be boiled in three changes of water before eating. Chemicals in the sap may cause severe skin irritation, but historically, the Chippewa would use C. palustris in poultices or baths for skin sores, wart removal, as well as colds.
Range/Distribution
Alberta: Central to Northern Alberta in boreal foret, aspen parkland and prairie regions
CAN (BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT); USA (AK, CA, CT, DE, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, NC, ND,…
Alberta: Central to Northern Alberta in boreal foret, aspen parkland and prairie regions
CAN (BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT); USA (AK, CA, CT, DE, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, NC, ND, NE, NH, NJ, NY, OH, OR, PA, RI, SD, TN, VA, VT, WA, WI, WV); Eurasia
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Citation
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Page Citation for Caltha palustris L.
Page Citation
"Species Details - Caltha palustris L., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/1-4456/12-65337. Accessed 03 Dec. 2024.
Specimen Information
There are 131 specimens of this Species.
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80 results plotted on map in 74 markers. Note: Only records with latitude and longitude coordinates are plotted on map.