Yes, Whitebark Pine and Yew are related; they belong to two different families (out of six to eight families) that make up the Conifers.

The Monterey Cypress (think: Lone Cypress) and the Sequoia (General Sherman Tree) are also conifers.

Interesting lore about Yews: they are commonly planted in cemeteries due to legend of keeping away the bad spirits (goes back to the Druids and probably before)

The body betrays and the weather conspires, hopefully, not on the same day.