How many letters does the top answer for “having the stamens united by the anthers; of or pertaining to the syngenesia.” have?

The most common answer is syngenesian (11 letters).

Crossword clue: having the stamens united by the anthers; of or pertaining to the syngenesia.

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

syngenesian 11 letters web-def

Having the stamens united by the anthers; of or pertaining to the Syngenesia.

syngenesious 12 letters web-def

Having the stamens united by the anthers; of or pertaining to the Syngenesia.