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Lesser Spearwort

©Richard Burkmarr

Lesser spearwort

So-named for its spear-like leaves, Lesser spearwort can be found along the edges of ponds, lakes and streams, and in marshes and wet meadows. As a buttercup, it displays familiar, butter-yellow flowers.

Enw gwyddonol

Ranunculus flammula

Pryd i'w gweld

June to October

Species information

Ystadegau

Height is around 30cm.
Common.

Ynghylch

Lesser spearwort is a common, hairless perennial of fresh water, such as the edges of ponds, lakes and streams, and in marshes, water meadows and bogs. A member of the buttercup family, it displays the familiar sunshine-yellow flowers that define this group. However, its leaves are undivided and spear-like, hence its name, 'Spearwort'. It has distinctive, scrambling red-tinged stems that can root at leaf junctions.

Sut i'w hadnabod

Lesser spearwort grows upright, but can be low and spreading. It has distinctive, red-tinged stems and shiny, pale yellow flowers that are half the size of those of Greater Spearwort. Unlike other buttercups, the leaves are undivided, spear-shaped and slightly toothed.

Dosbarthiad

Lesser spearwort is widespread and common throughout the UK.

Roeddech chi yn gwybod?

The sap of the Lesser spearwort is bitter and acrid and, if touched, will easily cause blisters.