Caltha palustris var. palustris
Caltha palustris L. var. palustris
Cowslip, Marsh-marigold, Yellow Marsh Marigold
Ranunculaceae (Buttercup Family)
Synonym(s): Caltha asarifolia, Caltha natans var. asarifolia, Caltha palustris ssp. asarifolia, Caltha palustris var. asarifolia, Caltha palustris var. flabellifolia
USDA Symbol: CAPAP6
Thick stems; broadly heart-shaped leaves; and clusters of large, showy, buttercup-like, yellow flowers characterize this clumped perennial. Marsh-marigold grows from 1-1 1/2 ft. in height.
From the Image Gallery
Bloom InformationBloom Color: Yellow
Bloom Time: Jul , Aug
DistributionUSA: AK , CA , CT , DE , IA , IL , IN , KY , MA , MD , ME , MI , MN , MO , NC , ND , NE , NH , NJ , NY , OH , OR , PA , RI , SC , SD , TN , VA , VT , WA , WI , WV
Canada: NB , NS , ON , PE
Native Distribution: Coast from AK to OR
Native Habitat: Bogs; stream edges
Growing ConditionsLight Requirement: Part Shade
Soil Moisture: Wet
Soil Description: Wet, humus-rich soil.
Conditions Comments: Not Available
BenefitUse Food: EDIBLE PARTS: Cooked, early spring greens are edible. Cover the young leaves with 2-3 changes of boiling water until barely tender; cut into bite-sized pieces, salt lightly, and cover with butter and some vinegar. Tightly closed buds can be pickled after covering with boiling water as described for leaves. Do not boil. (Poisonous Plants of N.C.)
Warning: POISONOUS PARTS: Leaves. Toxic only in large quantities. Symptoms include burning of the throat, vomiting, bloody diarrhea, dizziness, fainting, and convulsions. Toxic Principle: Protoanemonin. (Poisonous Plants of N.C.)
Conspicuous Flowers: yes
PropagationDescription: Seeds should be sown immediately upon ripening and should not be allowed to dry out before sowing. Seedlings do not flower until the third year following germination. Also reproduces rapidly by division.
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
Find Seed or Plants
View propagation protocol from Native Plants Network.
Additional resourcesUSDA: Find Caltha palustris var. palustris in USDA Plants
FNA: Find Caltha palustris var. palustris in the Flora of North America (if available)
Google: Search Google for Caltha palustris var. palustris
MetadataRecord Modified: 2007-01-01
Research By: TWC Staff