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white marsh marigold
Scientific Name: Caltha leptosepala ssp. leptosepala var. leptosepa
Family: Ranunculaceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Caltha leptosepala
Caltha leptosepala is commonly known as White Marsh Marigold, Twinflowered Marsh Marigold, or Broadleaved Marsh Marigold.
Considerations for Pets
- This plant grows from stems that may be buried.
Considerations for Children
- This plant grows from stems that may be buried.
Taxonomy and Nomenclature
- Family: Ranunculaceae (Buttercup family); formerly Helleboraceae (Hellebore).
- Synonyms/Variations:
- Caltha leptosepala ssp. leptosepala var. leptosepala
- Caltha leptosepala var. biflora
- Caltha biflora
- Caltha palustris var. alba
- Caltha leptosepala ssp. howellii
Distribution and Habitat
- Native to western North America, ranging from Alaska to New Mexico.
- Typically found in wet mountain habitats in alpine and subalpine regions.
- Common east of the Cascade Mountains in Oregon and Washington.
Morphology and Growth Habits
- A perennial plant, typically growing to around 1 foot in height.
- The glossy, basal leaves are longer than they are broad, with wavy edges.
- Leaves arise directly from the soil.
- Showy white flowers appear in spring (April-May) with a potential second flush in late summer (August-October).
- Height: 10-30 cm.
Ecological Role
- One of the earliest harbingers of spring in the Rocky Mountain West.
Interactions with Other Organisms
- Observed interacting with ladybugs (Hippodamia convergens).