Living in the same house

How to avoid self-fertilisation
One way that plants avoid self-fertilisation is by being dioecious (from the Greek, meaning 'living in separate houses') with separate male and female plants. Some species may be monoecious with separate male and female flowers on the same plant (from the Greek, meaning 'living in the same house'). Hazel (corylus avella) is a good example, with showy male flowers (catkins) and tiny, red, star-like female flowers.

Collected - Hackney wick community woodland, Friday 13th February.