The September blog will be all about Sorbus fruits – these have been showy now for a few weeks and will continue to be garden highlights for several weeks (maybe months) more. Sorbus have been featured before in this forum. Here is a thread from 2012 that has lots of photos: Perfect time to see Sorbus fruits . I will start with whitebeams. Here is Sorbus hemsleyi, showing some russetting on the pomes. What looks like two trees in the background is the same tree. And Sorbus karchungii. It's the very skinny (sorry, "exceptionally narrow") tree in the foreground. It is supposed to have pleated leaves - I'm not sure if that means along the veins or at the leaf edges. I'll post some rowans when I have the blog link.