bay tree, (home-)born (in the land), of the (one's own) country (nation)

Boyd’s Bible Dictionary:

(Psa. 37:35). The laurel, or sweet-bay (Laurus nobilis).

Concise Bible Dictionary:

From “native born,” or that which springs up without transplanting. Psalm 37:35 reads in the margin, “tree that groweth in his own soil,” a striking emblem of the wicked spreading himself in his own earthly soil.

Strong’s Dictionary of Hebrew Words:

Transliteration:
’ezrach
Phonic:
ez-rawkh’
Meaning:
from 2224 (in the sense of springing up); a spontaneous growth, i.e. native (tree or persons)
KJV Usage:
bay tree, (home-)born (in the land), of the (one's own) country (nation)