We've posted a lot of Sorbus fruits, many but not all of which are in the Perfect time to see Sorbus fruits thread. Here's a Sorbus flowers thread, though I'm not sure why, since the flowers all look pretty much the same to me. I'll start with one whose flowers look different, because they're pink - Sorbus rosea. Here's Sorbus keissleri. Sorbus sp. aff. thibetica Sorbus zahlbruckneri. These simple leaves seem to all be in groups of three. Sorbus commixta Here's one that really does look different - Sorbus reducta. This is a dwarf shrub, with wonderfully shiny and slightly hairy leaves. I was looking to see if this really showed a winged rachis. From efloras.org Flora of China, I confirmed that, and I learned the word sulcate, describing the grooved (groovy!) rachis. This Sorbus decora had some extra interest as well.
Your spring looks about a month ahead of here, rowans here are still in early leaf-out with flower buds just appearing or even (e.g. Sorbus sargentiana) not in leaf at all yet.