July 17, 2012 - leaves: Rhododendron, Hydrangea and Pseudolarix

Discussion in 'Talk about UBC Botanical Garden' started by wcutler, Jul 18, 2012.

  1. wcutler

    wcutler Paragon of Plants Forums Moderator VCBF Cherry Scout 10 Years

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    I was more excited about leaves yesterday. Here are two rhodies with great leaves.

    Rhododendron arizelum - nice bark on this one
    20120717_UBCBG_RhododendronArizelum_Cutler_P1270293.jpg 20120717_UBCBG_RhododendronArizelum_Cutler_P1270300.jpg

    And one with a great name - Rhododendron degronianum subsp. yakushimanum.
    20120717_UBCBG_RhodoDegronianumYakushimanum_Cutler_P1270285.jpg 20120717_UBCBG_RhodoDegronianumYakushimanum_Cutler_P1270286.jpg 20120717_UBCBG_RhodoDegronianumYakushimanum_Cutler_P1270291.jpg

    Sure hydrangeas have flowers, but these leaves and stems were large and fuzzy and impressive. This is Hydrangea aspera subsp. sargentiana, at Upper Asian Way and Tschonoski.
    20120717_UBCBG_HydrangeaAsperaSargentiana_Cutler_P1270374.jpg 20120717_UBCBG_HydrangeaAsperaSargentiana_Cutler_P1270376.jpg

    This one is a bit different. It looks like one we found a tag for, Hydrangea aspera 'Macrophylla', but it's not exactly the same location, though they're both near Lower Asian Way and Kingdon Ward, and we haven't found the tag for this one. It's not as fuzzy as the sargentiana, and the leaves are not as dark, but they might even be a bit bigger.
    20120717_UBCBG_HydrangeaAspera_Cutler_P1270237.jpg 20120717_UBCBG_HydrangeaAspera_Cutler_P1270238.jpg 20120717_UBCBG_HydrangeaAspera_Cutler_P1270244.jpg

    I found my favourite of the day not in the Asian Garden, but way at the end on the north side - Pseudolarix amabilis. I got all excited about this last year too.
    20120717_UBCBG_PseudolarixAmabilis_Cutler_P1270519.jpg 20120717_UBCBG_PseudolarixAmabilis_Cutler_P1270527.jpg
     
  2. Ron B

    Ron B Paragon of Plants 10 Years

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    Cullen, Hardy Rhododendron Species - A Guide to Identification (2005, Royal Botanic Garden Edinburgh) lists the first rhododendron as

    R. rex subsp. arizelum (Balfour and Forrest) Chamberlain
    Synonym R. arizelum Balfour and Forrest

    and the second as

    Rhododendron yakushimanum Nakai
    Synonym R. degronianum subsp. yakushimanum (Nakai) Hara
     

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