Mukdenia rossii Karasuba, also sold as Crimson Fans, is a deciduous rhizomatous perennial forming low patches about 20 to 30 cm high and 30 to 60 cm wide, with flower stems reaching around 40 cm. Large long-stalked rounded leaves are divided into five to nine deep palmate lobes with toothed margins. New leaves may emerge pink-bronze before becoming bronze-green. Crimson pigmentation begins at the tips and edges during summer, then intensifies toward rich red and purple in autumn. Dense clusters of small starry creamy-white flowers appear in spring.
Grow this hardy outdoor cultivar in partial shade in fertile leafy loam that is moist but well drained. It performs best in sheltered woodland conditions with cool, damp summers and reliable moisture. Mulch lightly with leaf mould, water during dry periods, and divide established clumps in spring. Karasuba suits woodland and shade gardens, cottage borders, underplanting, ground cover, naturalised patches, moist stream banks, and outdoor containers. Slugs and snails may damage emerging leaves, but serious disease is uncommon. It is not drought resistant and is not a houseplant.