How many letters does the top answer for “cone-shaped mass of ovule- or spore-bearing scales or bracts” have?

The most common answer is strobile (8 letters).

Crossword clue: cone-shaped mass of ovule- or spore-bearing scales or bracts

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

strobile 8 letters wn-def

cone-shaped mass of ovule- or spore-bearing scales or bracts

strobilus 9 letters wn-def

cone-shaped mass of ovule- or spore-bearing scales or bracts