After many years, my Rhododendron praevernum is finally starting to bloom . . . at least I think it is R. praevernum. While looking for more info about this species, I found Daniel Mosquin's Botany Photo of the Day from March 2014 (photo attached) showing it with a large blotch. Mine (second attachment) has no blotch at all so I wonder if this is normal variablity or if my rhodo is not R. praevernum after all. Ron B commented to D. Mosquin's Botany Photo of the Day: Some collections – for instance the Kruckeberg Botanic Garden, Shoreline, WA, where I have identified multiple examples of it – contain the hybrid between R. praevernum and R. sutchuenense Franchet, called R. x geraldii (Hutchinson) Ivens. Probably in most of these instances the hybrid plants were raised (and may continue to be displayed as) R. sutchuenense. But the hybrid plants can be easily told by their combining the blotched corollas of R. praevernum with the hairy midribs on the undersides of the leaves of R. sutchuenense – true R. sutchuenense produces corollas entirely without basal blotches. Good information but I'm still confused.