Edible Parts: Leaves.
Young plant cooked. It is said to be not unwholesome if the plant is boiled and the water thrown away and then the plant cooked again. Caution is strongly advised; see the notes above on toxicity and below on medicinal uses.
The celery-leafed buttercup is one of the most virulent of our native plants. The whole plant is acrid, anodyne, antispasmodic, diaphoretic and emmenagogue and rubefacient. When bruised and applied to the skin it raises a blister and creates a sore that is by no means easy to heal. If chewed it inflames the tongue and produces violent effects. The herb should be used fresh since it loses its effects when dried. The leaves and the root are used externally as an antirheumatic. The seed is tonic and is used in the treatment of colds, general debility, rheumatism and spermatorrhoea.
An extract of the leaves can be used as a fungicide