Laurie Campbell / Winter aconite (Eranthis hyemalis) flowers emerging through snow, Roxburghshire, Scotland, February

Orsolya Haarberg / Winter aconite (Eranthis hyemalis) flowers, Szatmar-Bereg, Hungary.

Paul Hobson / Winter aconite (Eranthis hyemalis) bud closed, Peak District NP, UK

Heather Angel / Common drone fly (Eristalis tenax) nectaring on Winter aconite (Eranthis hyemalis). Surrey, England, UK.. February.

Heather Angel / Winter aconite (Eranthis hyemalis) flower and bud. Ring of nectaries formed from petals. In garden, Surrey, England, UK. February.

Heather Angel / Winter aconite (Eranthis hyemalis) with ring of nectaries below stamens. Focus stacked.

Robin Chittenden / Snowdrops (Galanthus nivalis) and Winter Aconite (Eranthis hyemalis) Norfolk UK February

Ernie Janes / Winter aconites (Eranthis hyemalis) flowers grown commercially, Norfolk, England, UK, February 2015.

Adrian Davies / Winter aconite (Eranthis hyemalis) flower, Surrey, England, March.

Ernie Janes / Winter aconite (Eranthis hyemalis) flower buds in snow, UK, February.

Thomas Marent / Winter Aconite (Eranthis hyemalis) flowers, Switzerland

Thomas Marent / Winter Aconite (Eranthis hyemalis) flowers, Switzerland