Shallots and echalions, what are the differences?

Shallots and echalions ? According to the European catalog of varieties of vegetable species (2015/C 395/01), it appears that the variety

ONIONS, SHALLOTS & GARLIC (Jan 2021) – Mousehold Garden Centre

This Is The Difference Between Shallots And Onions

a whopper! the seed-grown banana shallot - A Way To Garden

Shallots vs Green Onions - The Harvest Kitchen

Shallot - Echalion Creme Brulee F1

This Is The Difference Between Shallots And Onions

Substitutes for banana shallot

For true flavour, thank shallots, Gardening advice

Shallots vs Green Onions - The Harvest Kitchen

Echalion Crème Brûlée Shallot Seeds