How many letters does the top answer for “belonging or relating to the willow.” have?

The most common answer is salicaceous (11 letters).

Crossword clue: belonging or relating to the willow.

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

salicaceous 11 letters web-def

Belonging or relating to the willow.

of or relating or belonging to a city 50% similar → civic

of or relating to or belonging to the diptera 50% similar → dipterous

relating or belonging to the echinoderms. 50% similar → echinodermal