Herbariuma Backpackers project
All plants

Bulbous buttercup

Ranunculus bulbosus

Family · Ranunculaceae · Poisonous

ToxicIrritant

Read this before the sheet

This plant, or one that resembles it, is dangerous. Identifying is not authorising: no app has the authority to tell you that you may eat or touch a plant.

Bulbous buttercup (Ranunculus bulbosus)Bulbous buttercup (Ranunculus bulbosus)
H. Zell, CC BY-SA 3.0 · Andreas Eichler, CC BY-SA 4.0

The buttercup of dry meadows, told apart by two things: the sepals fold down against the flower stalk, and the stem base swells into a bulb the size of a small turnip.

Where it grows

Fields and pasture · Uplands · Roadsides and waste ground

Also known as

St Anthony's turnip, bulbous crowfoot

In flower

How to tell it

Bright yellow varnished flowers, two to three centimetres. The sepals are folded down and pressed to the stalk, which no other common buttercup does and settles identification in a second. The stem base, right at soil level, is a round white bulb. Leaves divided into three stalked leaflets.

What it is confused with

Creeping buttercup

Ranunculus repens

Harmless confusion

Look at the sepals behind the flower: folded down on the bulbous one, pressed to the petals on the creeping one. And the creeping one spreads by runners on damp soil, the bulbous one stays in a tuft in dry meadow. Both irritate skin.

Open sheet

What it is for

None. It is among the buttercups richest in protoanemonin in Europe: the fresh sap raises blisters on skin within minutes, and the bulb was used by beggars to create visible sores. It is neither tasted nor crushed against skin.

Sources