November 2018 in the Garden - Rhododendrons

Discussion in 'Talk about UBC Botanical Garden' started by wcutler, Nov 8, 2018.

  1. wcutler

    wcutler Esteemed Contributor Forums Moderator VCBF Cherry Scout 10 Years

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    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.
    Rhododendron-cinnabarinum-subsp-xanthocodon-ConcatenansGroup_UBCBG_Cutler_20181107_P1370376.JPG Rhododendron-cinnabarinum-subsp-xanthocodon-ConcatenansGroup_UBCBG_Cutler_20181107_P1370370.JPG Rhododendron-cinnabarinum-subsp-xanthocodon-ConcatenansGroup_UBCBG_Cutler_20181107_P1370372.JPG

    I am pretty sure this is Rhododendron micranthum, though I think I just imagined that I detected the spicy aroma.
    Rhododendron-micranthum_UBCBG_Cutler_20181107_P1370361.JPG Rhododendron-micranthum_UBCBG_Cutler_20181107_P1370363.JPG Rhododendron-micranthum_UBCBG_Cutler_20181107_P1370365.JPG

    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.
    Rhododendron-wasonii_UBCBG_Cutler_20181107_P1370401.JPG Rhododendron-wasonii_UBCBG_Cutler_20181107_P1370403.JPG
     
  2. wcutler

    wcutler Esteemed Contributor Forums Moderator VCBF Cherry Scout 10 Years

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    I didn't get to R. bureavii this week (featured in the blog), but I have posted it twice previously - a couple of photos are in this 2013 thread. Here is a pretty good stand-in - Rhododendron argyrophyllum subsp. argyrophyllum. I thought all that low growth was (were?) pruned branches, but no, they're all attached to the ground.
    Rhododendron-argyrophyllum-subsp-argyrophyllum_UBCBG_Cutler_20181107_P1370353.JPG Rhododendron-argyrophyllum-subsp-argyrophyllum_UBCBG_Cutler_20181107_P1370349.JPG Rhododendron-argyrophyllum-subsp-argyrophyllum_UBCBG_Cutler_20181107_P1370351.JPG

    Here is Rhododendron yakushimanum, according to the label; this seems to be a synonym for Rhododendron degronianum subsp. yakushimanum (link goes to the Collections page on Garden Explorer). This one is near the pond in the north garden.
    Rhododendron-yakushimanum_UBCBG_Cutler_20181107_P1370442.JPG Rhododendron-yakushimanum_UBCBG_Cutler_20181107_P1370443.JPG Rhododendron-yakushimanum_UBCBG_Cutler_20181107_P1370446-001.JPG Rhododendron-yakushimanum_UBCBG_Cutler_20181107_P1370450.JPG

    The tag was clearly affixed to this plant, saying Rhododendron 'Scarlet Runner'. I've been looking things up to make sure I haven't got something very wrong, but you should see what comes up when you query this - every photo looks nothing like any other photo, and none looks quite like this; and of course there are a lot of beans. The collections page shows it as Rhododendron forrestii 'Scarlet Runner', so I tried that; still it's not all that convincing. Nice plant, though.
    RhododendronScarletRunner_UBCBG_Cutler_20181107_P1370487.JPG RhododendronScarletRunner_UBCBG_Cutler_20181107_P1370490.JPG
     
  3. wcutler

    wcutler Esteemed Contributor Forums Moderator VCBF Cherry Scout 10 Years

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    Here are two of the same species, different subspecies. Rhododendron calostrotum subsp. keleticum.
    Rhododendron-calostrotum-ssp-keleticum_UBCBG_Cutler_20181107_P1370459.JPG Rhododendron-calostrotum-ssp-keleticum_UBCBG_Cutler_20181107_P1370458.JPG
    And Rhododendron calostrotum subsp. riparium.
    Rhododendron-calostrotum-subsp-riparium_UBCBG_Cutler_20181107_P1370494.JPG Rhododendron-calostrotum-subsp-riparium_UBCBG_Cutler_20181107_P1370496.JPG Rhododendron-calostrotum-subsp-riparium_UBCBG_Cutler_20181107_P1370498.JPG
     
  4. wcutler

    wcutler Esteemed Contributor Forums Moderator VCBF Cherry Scout 10 Years

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    This might have been my favourite: Rhododendron linearifolium, so unusual-looking for a rhody.
    Rhododendron-linearifolium_UBCBG_Cutler_20181107_P1370482.JPG Rhododendron-linearifolium_UBCBG_Cutler_20181107_P1370485.JPG

    Others with nice hairs are Rhododendron sp. aff. spiciferum
    Rhododendron-sp-aff-spiciferum_UBCBG_Cutler_20181107_P1370339.JPG Rhododendron-sp-aff-spiciferum_UBCBG_Cutler_20181107_P1370341.JPG

    and Rhododendron taiwanalpinum.
    Rhododendron-taiwanalpinum_UBCBG_Cutler_20181107_P1370415.JPG Rhododendron-taiwanalpinum_UBCBG_Cutler_20181107_P1370419.JPG
     

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