1. Resulting from a cross between species of different genera

See also: crossbred

• echidna
• Echidnophaga
• Echidnophaga gallinacea
• Echinacea
• echinocactus
• Echinocactus grusonii
• Echinocereus
• Echinochloa
• Echinochloa crusgalli
• Echinochloa frumentacea
• echinococcosis
• echinococcus
• echinoderm
• echinoderm family
• echinoderm genus
• Echinodermata
• echinoid
• Echinoidea
• Echinops
• echinus
• Echinus esculentus
• Echium
• Echium vulgare
• echo
• echo chamber