*Eryngium leavenworthii - Leavenworth's eryngo
*Eryngium lemmonii - Chiricahua Mountain eryngo
*Eryngium longifolium
*Eryngium maritimum - sea holly, seaside eryngo
*Eryngium mathiasiae - Mathias's eryngo
*Eryngium nasturtiifolium - hierba del