How many letters does the top answer for “bearing fruit but once, and dying after fructification, as beans, maize, mustard, etc.” have?

The most common answer is monocarpic (10 letters).

Crossword clue: bearing fruit but once, and dying after fructification, as beans, maize, mustard, etc.

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

monocarpic 10 letters web-def

dying after bearing fruit only once

monocarpous 11 letters web-def

Bearing fruit but once, and dying after fructification, as beans, maize, mustard, etc.