Crossword clue: the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood

The most common answer is duramen (7 letters).

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

Possible answers

duramen 7 letters wn-def

the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood

heartwood 9 letters wn-def

the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood