Oenethera biennis - Evening Primrose
Originally from North America, this tallish
biennial is now a very common sight throughout Wales. The flowers, which appear from June
through to September, are typically 25 to 30 mm across. You will see plenty of these
splendid summer flowers on waste ground, beside railway tracks and even on sand dunes;
they cope well with dry conditions.

There are several other species of evening primroses, many of which are
garden escapes, and they tend to hybridise with the common evening primrose.
Wildflowers of Wales
This wildflower is one of many dozens that are featured in the First Nature Guide to the
Wonderful Wildflowers of Wales, Volume 1 - Woodland and Waysides.
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