Definition
Caltha palustris, also known as marsh marigold or kingcup, is a perennial flowering plant found in wet areas like marshes and ditches. Its bright yellow, buttercup-like flowers appear in early spring, adding a splash of color to otherwise drab landscapes. Think of it as nature's own highlighter, bringing attention to the arrival of warmer days. Though beautiful, it's mildly poisonous if ingested raw, so admire from afar. It's like that cool-looking but slightly sus plant friend you know. Marsh marigold is often used in ornamental gardens or near water features.