The Demeter Flower by Shelley Singer

A first novel imagining ann entire society created and governed by women who have survived the violent collapse of late 20th century patriarchal society by withdrawing to their own village and guarding their newly-discovered secret of parthenogenesis. The peace is shattered when a pair of outsiders, a man and a woman from the medieval patriarchal culture that has developed in the world outside, arrive at the village. A probing, thoughtful story of conflict and survival, love and the reality of change and struggle.