Seasonal Wild Flowers

Square-stalked Willowherb

Epilobium tetragonum

Onagraceae

June to Augusr

It is found throughout the country except for the far North.

See the BSBI distribution map for Square-stalked

It grows in waste ground, at the edges of woodland, by

streams and as a weed in cultivated land.

Square-stalked Willowherb is a native, stoloniferous,

perennial herb, growing up to 80cm.

Flowers are shaped like a cross and only 8mm.

Petals are purple pink.

The stigma is club shaped and the same length as

the style.

Leaves are bluntly lanceolate and strongly veined.

Stems are stout and square, downy at the top and

hairless below.

Square-stalked Willowherb -

damp ground, Lancaster

Flowerhead

Stigma and stamens

Side view - stigma and style

Leaves and square stem