How many letters does the top answer for “attached directly by the base; not having an intervening stalk” have?

The most common answer is sessile (7 letters).

Crossword clue: attached directly by the base; not having an intervening stalk

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

sessile 7 letters wn-def

attached directly by the base; not having an intervening stalk

stalkless 9 letters wn-def

attached directly by the base; not having an intervening stalk