Ranunculus acris
It has tall upright stems with highly divided leaves and bright yellow flowers. Flowers May-Aug.
Soil moisture tolerances
It is found on sites with 10-20 weeks dry soil per year and less than 10 weeks of wet soil per year. It is very intolerant of waterlogged conditions.
Soil fertility tolerances
It is typically found on moderately fertile sites (10-25 mg P/kg) or P index 1-2.
Traditional medicinal use
Acris means bitter hence cattle often avoid it, allowing the stems to grow tall above the cropped grass.