Relatives you already know
Valerian is the best known member outside gardening, its root used as a sedative for centuries and still sold for sleep. The smell of the dried root is genuinely unpleasant and is often compared to old socks, which cats find fascinating in much the way they respond to catnip.
Teasel is here too, the dried head with its stiff hooked bracts, and it was once a genuine piece of industrial equipment. Teasel heads were mounted in frames and used to raise the nap on woolen cloth, a job no machine did better for a long time.
Elder and viburnum sit close by and were traditionally placed in this family before being moved out in the same reshuffle that moved others in. The name Caprifoliaceae means goat leaf, from an old Latin name for honeysuckle, and nobody is entirely sure what goats had to do with it.