Greater Willowherb
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Epilobium hirsutum
Common & widespread in Britain.
The robust stems are profusely hairy with soft spreading hairs.
The hairy leaves are 2–12 cm long and 0.5–3.5 cm wide.
They are long and thin and are widest below the middle.
They have sharply toothed edges and no stalk.
The large flowers have four notched petals.
These are purple-pink and are usually 10–16 mm long.
There are 8 stamens.
The stigma is white and has four lobes.
The sepals are green.
Flowers from July-August.