What do hardwood and softwood stand for?

(N/A) The difference between softwood and hardwood is as follows:

Softwood	Hardwood
$(1)$ In gymnosperms, softwood mainly possesses tracheids.	$(1)$ In angiosperms, hardwood mainly consists of vessels.
$(2)$ It lacks vessels.	$(2)$ It lacks tracheids.

Softwood is typically produced by gymnosperms (conifers), which lack vessels in their xylem. Hardwood is typically produced by angiosperms (flowering plants), which possess vessels in their xylem.