The term "Hairy Buttercup" is commonly associated with the plant species Ranunculus sardous, which is a member of the buttercup family (Ranunculaceae). Here's a brief description and care instructions:

Description: The Hairy Buttercup (Ranunculus sardous) is a charming herbaceous plant known for its delicate yellow flowers. The name "hairy" refers to the fine hairs often found on the leaves and stems of the plant. This low-growing perennial is characterized by its deeply divided, lobed leaves and bright yellow, cup-shaped flowers. It adds a touch of cheerfulness to gardens and natural areas.

Care Instructions:

1. Sunlight: Plant the Hairy Buttercup in a location that receives partial to full sunlight. It generally thrives in areas with well-distributed sunlight.
2. Soil: Ensure well-drained soil for optimal growth. The plant can adapt to various soil types but prefers slightly moist conditions.
3. Watering: Keep the soil consistently moist, especially during the growing season. Watering should be moderate, avoiding waterlogged conditions.
4. Propagation: Hairy Buttercup can be propagated through seeds or by dividing established clumps. Sow seeds in the fall or spring, and divide the plant every few years to maintain vigor.
5. Pruning: Deadhead spent flowers regularly to encourage continuous blooming and prevent the plant from going to seed prematurely.
6. Mulching: Apply a layer of mulch around the base of the plant to help retain soil moisture and suppress weed growth.
7. Fertilization: While not excessively demanding, you can provide a balanced, all-purpose fertilizer in early spring to support healthy growth.
8. Pests and Diseases: Keep an eye out for common garden pests, and treat promptly if necessary. The Hairy Buttercup is generally hardy but can be susceptible to certain diseases in overly wet conditions.