Elderwood

 (老树桩; pinyin: lǎoshùzhuāng) is a plant in Plants vs. Zombies: All Stars. It attacks zombies that are close to it by headbutting them. It is the downgrade of Torchwood. It is unlocked by collecting 30 Puzzle Pieces.

Plant Food upgrade
Strong strike: Strikes the first enemy on its lane. It requires Tenacious Plant Food to be activated.

Trivia

 * , Sap-fling, Oak Archer, Torchwood, Wildfire Stump, and Iron Oak are the only plants based on trees.