Spices can come from tree bark like cinnamon, plant roots like ginger, flower buds like cloves.

香料可以由肉桂等植物的树干、姜等的根、四叶草等的花蕾制成。

youdao

He made cheap zhi out of tree bark and old cloth.

他用树皮和旧布做成了价廉的纸。

youdao

Recoiling in pain, I'd scrape my back or arms on the scaly tree bark.

我疼得直往后缩，后背或胳膊被粗糙的树皮刮伤。

youdao

These include sassafras,vanilla, wintergreen, cherry-tree bark, licorice root, black cherry and cane sugar.

VOA: special.2011.08.01

Small pieces of tree bark or cut up leaves can be used.

VOA: special.2009.06.30

Girls with cheeks smeared with thanaka (sun block made from ground tree bark) balance two to a bicycle.

BBC: A new dawn in Burma

Two years later they're found living off tree bark, wearing animal skins and making nutritional smoothies out of locally gathered herbs and their own urine.

FORBES: Magazine Article

An abandoned horse that looked like a "walking skeleton" and was forced to eat tree bark to survive has been rescued from a field in Hertfordshire.

BBC: Maggie the horse