Echinacea rhymes with:
iglesia, pharmacia, plescia, alexia, alicea, aloisia, aloysia, alysia, anorexia, ataxia, blasia, celosia, dambrosia, derosia, dosia, dulcea, dyslexia, elsea, eudosia, eudoxia, gelasia, grassia, horacia, hypoxia, iglesia, intelligentsia, licea, pharmacia, plescia, rasia, rossiya, valencia
Echinacea sounds like:
eakins, easing, easygoing, echoing, economic, economico, economics, economies, economize, economizes, economos, economy's, egging, eggnog, eggnogs, egomaniac, eischens, eisenach, eking, ekins, equinox, escamez, eschewing, eskenazi, eskimos, essence, eugenia's, eugenic, eugenics, eugenio's, examines, examining, exams, exchange, exchange's, exchanges, exchanges', excusing, exhumes, exigencies, exigency, exim's, exogenous, exxon's