Grr - I finished my whole posting and didn't save it. Maybe this will help me learn the names, but I doubt it. Last time I mis-identified something as Rhododendron falconeri. Now I wonder if I'm doing that again. That's what the tag said for these flowers. I think these flowers look just like the ones above, but the label said Rhododendron coriaceum. It's not like they were near each other and I could have mixed up the labels. These Rhododendron arizelum flowers get such pretty colouring as they age. The Rhododendron coeloneuron in the front that's flopped to the ground has much better colouring than the one in back. The photos are from the one in front. I'm sure I posted this Rhododendron cinnabarinum subsp. cinnabarinum last year. I love how the inside and outside of the flowers are different colours. This Rhododendron cinnabarinum subsp. xanthocodon has Concatenans group on the label and on the database. Is that any different from the Rhododendron cinnabarinum subsp. xanthocodon that don't have Concatenans on the label? Wouldn't all the R. cinnabarinum be in the Concatenans group? Botany Photo of the Day for April 15, 2014 features Daniel Mosquin's photo of an unidentified rhododendron in the Triflora subsection.