Noun | 1. | ![]() dicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination family Urticaceae, nettle family, Urticaceae - a family of plants of order Urticales including many nettles with stinging hairs Parietaria difussa, pellitory, pellitory-of-the-wall, wall pellitory - herb that grows in crevices having long narrow leaves and small pink apetalous flowers |