ligneous

He was educated during youthful travels through Western Europe, and loathed the Slavic, ligneous chaos of Moscow.

From Newsweek

Baba’s lips, formed from the tree trunk’s bark, were pressed tight, his ligneous face full of a quiet sadness.

From "Beasts of Prey" by Ayana Gray

Organic remains have sometimes suffered a singular transformation, as for 176 example, where shells, corals, and wood are silicified, their calcareous or ligneous matter having been replaced by nearly pure silica.

From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Sir Charles Lyell

If cold water be poured on this ligneous flour, enclosed in a linen bag, it becomes milky, and considerable pressure and kneading is required to express the amylaceous or starchy part of it.

From Curiosities of Medical Experience by J. G. (John Gideon) Millingen

This disc appeared composed of some substance that was not ligneous: for it no more resembled wood than the curved ivory-like object that protruded from its centre.

From The Cliff Climbers A Sequel to "The Plant Hunters" by Mayne Reid