cerina herb:

Has anyone heard of this herb? Mrs. BYTER brought home a Mexican tea that contains this herb.

I can't find much information of this other then it seems
to be a LICHEN. Nothing on what it's used for ?

Thanks Byter

There is a type of rose which is sometimes called Californian Holly, the variety with yellow flowers is called cerina and is often used in teas to ease pain.

Thanks Silja:

It's kind of funny that I have to go all the way to Ireland to find out about
a plant that grows wild all around me.

I've seen this plant here in mountains near all my life, but had
no idea what it was.

Thanks again Byter (AKA Mike B.)