Schemes including Hedera helix

• NatureServe Explorer: An online encyclopedia of life. Version 7.1 (ELEMENT_GLOBAL.2.147683) Hedera helix
• New England Wild Flower Society's Flora Novae Angliae Hedera helix
• CONABIO Hedera helix
• NatureWatch NZ Hedera helix
• GBIF (3036074) Hedera helix
• NPSpecies (63940) Hedera helix