Purple Heart Plant Texas - I'm Trying To Identify These Purple Flowers. They Have 5 - Echinacea / ˌ ɛ k ɪ ˈ n eɪ ʃ i ə / is a genus of herbaceous flowering plants in the daisy family.it has ten species, which are commonly called coneflowers.they are found only in eastern and central north america, where they grow in moist to dry prairies and open wooded areas.