Boyd’s Bible Dictionary:
(butterfly-leaf). The white poplar supposed to be meant (Gen. 30:37; Hos. 4:13).
Concise Bible Dictionary:
Populus Alba (White Poplar) Leaves
It was probably the white poplar (Populus alba) which Jacob employed: it was “green” in the sense of being fresh, moist. The poplar affords a grateful shade from the heat of the sun and was therefore one of the trees chosen under which the Israelites burnt incense (Gen. 30:37; Hos. 4:13). Some judge the Hebrew word libneh to refer to the “storax tree” (the styrax officinale) which also grows in Palestine.
Populus Alba (White Poplar)
The Storax Tree
Strong’s Dictionary of Hebrew Words:
Meaning:
from 3835; some sort of whitish tree, perhaps the storax