Yellow to deep yellow flower, leaves 1 to 4mm wide; tepals suffused or striped with purple.

Most yellow crocuses are this species but C. ancyrensis (as before, but leaves 0.5 to 1.00 mm wide) or C. chrysanthus (creamy yellow with non-fibrous corm) can also occur.

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Usually introduced along roadsides and streamsides or found where garden waste containing the bulbs has been deposited.

Flowering any time from January to April.

Perennial.

Widespread in Britain as an introduction or an escape from cultivation

Fairly frequent in Leicestershire and Rutland as an introduction or an escape from cultivation. It was not included in the 1979 Flora survey of Leicestershire.