Douglas Justice's blog for November - November 2018 in the Garden | UBC Botanical Garden - is all about rhododendron leaves, and there are several very good photos there to illustrate his descriptions. I just found a few of the species he mentioned, but I photographed a ton of others I came across while I was looking. I'll start with ones in the blog. Douglas wrote a lot about the fragrance of Rhododendron cinnabarinum subsp. xanthocodon Concatenans Group. He added that "the flowers aren't half bad either, but you'll have to wait for sprint for those." Ha! It's not covered in flowers, but there were a few! The fragrance wasn't half bad either. I am pretty sure this is Rhododendron micranthum, though I think I just imagined that I detected the spicy aroma. Another included for its spicy aroma is Rhododendron wasonii. The collections page on Garden Explorer, at Rhododendron wasonii | UBC Botanical Garden, includes a photo that clearly demonstrates the indumentum coloured ivory or brown. My photos show some lighter indumentum and mostly brown.