Ranunculus penicillatus, commonly known as Stream Water-crowfoot, is a perennial herbaceous plant native to Europe and North Africa, including Morocco. It is typically found in flowing freshwater environments such as streams, rivers, and occasionally in ponds, where it plays a role in aquatic biodiversity. Stream Water-crowfoot has a spreading habit and can form dense mats on the water surface. It features delicate white flowers with a yellow center that bloom from May to August, adding aesthetic value to water features.

Stream Water-crowfoot is valued for its ornamental flowers and its ability to oxygenate and purify water, making it a beneficial addition to aquatic gardens and naturalized pond settings. It prefers full sun to part shade and requires an aquatic environment with clean, moving water to thrive. While it is not commonly used in traditional garden settings due to its aquatic nature, it can be a key component in water gardens and for ecological restoration projects. Care should be taken to manage its growth as it can become invasive in some conditions, potentially outcompeting native species.CC BY-SA 4.0