SafePlants

Marsh Marigold (Caltha palustris)

The Marsh Marigold, scientifically known as Caltha palustris, is also commonly called Kingcup. It's a cheerful native plant that brightens wet areas and pond banks, announcing the arrival of spring with its vibrant yellow flowers.

Considerations for Pets

• The text notes that the whole plant is considered to be a known hazard, particularly the older parts.

Taxonomy and Nomenclature

• Scientific Name: Caltha palustris L.
• Family: Ranunculaceae (Buttercup Family)
• Common Names: Marsh Marigold, Kingcup, Cowslip, Yellow Marsh Marigold, Mayflower, May Blobs, Mollyblobs, Pollyblobs, Horse Blobs, Water Blobs, Water-Bubbles, Yellow-Boots, Marybuds
• French Name: Populage des marais
• Subspecies: Asarifolia

Distribution and Habitat

• Native to North America and The Western Isles.
• Prefers moist woodlands and boggy areas.
• Often found in wet soils, along the edges of ponds, stream banks, and in bog and water gardens.

Morphological Characteristics and Growth Habits

• Herbaceous perennial, maturing to about 2 feet (60 cm) in height.
• Succulent plant with glossy, heart- or kidney-shaped leaves.
• Thick, hollow, branching stem.
• Bright yellow, cup-shaped flowers that resemble oversized buttercups, typically 2-5 cm in diameter with 4-9 sepals.
• Rhizomatous growth.

Quirky Facts

• The Latin name Caltha is derived from the Greek word for 'goblet', referring to the cup-like shape of the flowers.
• Marsh Marigolds have been described as shining "like fire in swamps" due to their vivid yellow flowers.
• The plant has numerous traditional and folklore names, reflecting its familiarity and association with wet environments.

Interactions with Other Organisms

• Attracts frogs, dragonflies, birds, and other small animals.

Further Information

• The RHS (Royal Horticultural Society) offers help and information on Caltha palustris.