Hanham (1857) noted that in his day concave-leaved Field Elm, "U. campestris concavaefolia", was frequently mistaken for and sold as 'Crispa' in nurseries, "though there is a wide difference between them". The Louis van Houtte nursery used the synonym "Ulmus campestris adiantifolia" for 'Crispa', and "Ulmus campestris crispa" for the cultivar 'Webbiana'. The Baudriller nursery of Angers went one step further, listing "Ulmus campestris adiantifolia", "orme à feuilles de capillaire" [:'downy-leaved elm'], separately from both "Ulmus campestris crispa", "orme à feuilles crispées" [:'wrinkled leaved elm'] and "Ulmus campestris webbiana", "orme de Webb".