Here's why:

* Coniferous means "cone-bearing." All these trees produce cones, which are their reproductive structures.

* Pines are easily recognizable by their needle-like leaves and cones.

* Cedars also have needle-like leaves but are known for their fragrant wood.

* Yews have flat, needle-like leaves and berry-like structures (actually fleshy cones) that are often red.

While they are all coniferous, they belong to different genera and families.