September 2024 in the garden - unusual deciduous trees

Discussion in 'Talk about UBC Botanical Garden' started by wcutler, Sep 7, 2024.

  1. wcutler

    wcutler Paragon of Plants Forums Moderator VCBF Cherry Scout 10 Years

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    Douglas Justice's September in the Garden 2024 - UBC Botanical Garden is up, with so many of my favourite trees. You know it's not a a big flower time for trees, with some exceptions, such as the Koelreuteria paniculata that was "removed last year" but is doing well.
    Koelreuteria paniculata_UBCBG_Cutler_20240905_160404.jpg Koelreuteria paniculata_UBCBG_Cutler_20240905_160429.jpg Koelreuteria paniculata_UBCBG_Cutler_20240905_160438.jpg
    And the Heptacodium miconioides, seven sons tree, that is blooming right on time.
    Heptacodium miconioides_UBCBG_Cutler_20240905_144544.jpg Heptacodium miconioides_UBCBG_Cutler_20240905_151524.jpg

    The first tree mentioned is Tapiscia sinensis, which I first became aware of in 2013. The excitement back then was the presence of the stipels on the rachis. Stipels seem to be little stipules. Lots of photos are at https://forums.botanicalgarden.ubc.ca/threads/april-23-2013-just-two-great-trees.78043/. I managed to miss the flowers, but fruits are developing. The spring leaf photo is from my original posting. This is probably tied for my favourite leaves, but in this case, it's the new spring leaves.
    Tapiscia sinensis_UBCBG_Cutler_20240905_140630.jpg Tapiscia sinensis_UBCBG_Cutler_20240905_140702.jpg Tapiscia sinensis_UBCBG_Cutler_20240905_140727.jpg Tapiscia sinensis_UBCBG_Cutler_20130425_P1430252.jpg

    I posted in another thread photos of Gymnocladus chinensis that I took two months ago. It still looks the same, but it may as well be included here, since it was mentioned in the blog. These were taken this week. That's Rubus lineatus in front of the Gymnocladus.
    Gymnocladus chinensis adn Rubus lineatus_UBCBG_Cutler_20240905_141515.jpg Gymnocladus chinensis_UBCBG_Cutler_20240905_141439.jpg

    Pseudolarix amabilis is just past the Tapiscia, seen from the boardwalk.
    Pseudolarix amabilis_UBCBG_Cutler_20240905_141029.jpg Pseudolarix amabilis_UBCBG_Cutler_20240905_140859.jpg
    Here it was in 2019, with the needle arrangement that helps me recognize these trees, which I didn't see this week. Is that a juvenile leaf arranagement?
    Pseudolarix-amabilis_UBCBG_Cutler_20191002_153002.jpg Pseudolarix-amabilis_UBCBG_Cutler_20191002_152834.jpg

    Still on the boardwalk, here is the trunk of the Lagerstroemia subcostata var. fauriei, Yakushima crepe myrtle.
    Lagerstroemia subcostata var. fauriei_UBCBG_Cutler_20240905_141714.jpg Lagerstroemia subcostata var. fauriei_UBCBG_Cutler_20240905_141719.jpg Lagerstroemia subcostata var. fauriei_UBCBG_Cutler_20240905_141727.jpg

    In the next posting, I'll finally get into the garden.
     
  2. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    I don't see any difference! And no, there isn't any distinct juvenile leaf arrangement.
     
  3. wcutler

    wcutler Paragon of Plants Forums Moderator VCBF Cherry Scout 10 Years

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    Thanks, Michael. In the older photo, the leaves are in flat whorls strung out along the branch, like little spiders. In this year's photo, the only someewhat spidery-looking leaf arrangements I could find were near the ends of the branches, with the rest strung out singly along the branches.
     
  4. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    That's because it is growing vigorously, so all that's easily visible are the long shoots on the outer tips of the branches. The short shoots with whorls of leaves are a bit hidden in the recent photos, but they'll be there. The growth format with long and short shoots is very similar to larch (and cedar), though evolved independently.
     
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  5. wcutler

    wcutler Paragon of Plants Forums Moderator VCBF Cherry Scout 10 Years

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    OK, in the garden now, I only got to the Asian Garden this time. I recognized the Tetracentron sinense near the path I used to call First Forrest. Now Forrest doesn't come this far. This tree has lots of catkin-like fruit.
    Tetracentron sinense_UBCBG_Cutler_20240905_144205.jpg Tetracentron sinense_UBCBG_Cutler_20240905_144221.jpg Tetracentron sinense_UBCBG_Cutler_20240905_144228.jpg Tetracentron sinense_UBCBG_Cutler_20240905_144235.jpg
    A little farther along, near the service gate, is another Tetracentron sinense that I've always liked because the leaves are more appealing and yield more satisfying photos. These are my number 1 favourite leaves, maybe somewhat because they remind me of the botanical gardens trip to Ireland where I first saw them. I was a little anxious about this having no fruits, since I'm not sure I have ever really seen the label, but finally I found a few. In the second photo, if you start at the branch that hits the bottom margin in the middle and follow it up to the left, you will come to three catkins, and then one more a few branches up.
    Tetracentron sinense_UBCBG_Cutler_20240905_152442.jpg Tetracentron sinense_UBCBG_Cutler_20240905_152801.jpg Tetracentron sinense_UBCBG_Cutler_20240905_152459.jpg Tetracentron sinense_UBCBG_Cutler_20240905_152708.jpg
    Between this tree and the service gate was a nice spider web. I don't know what the tree is.
    Spider web_UBCBG_Cutler_20240905_152404.jpg

    This young Acer serrulatum with nice white bark was not in the blog. I thought it would be in the Acer snake-bark section (Macrantha) but it's in the Palmata section.
    Acer serrulatum_UBCBG_Cutler_20240905_153530.jpg Acer serrulatum_UBCBG_Cutler_20240905_153540.jpg Acer serrulatum_UBCBG_Cutler_20240905_153556.jpg

    Here is Hovenia dulcis, Japanese raisin tree. I did not see any of the fruits or even figure out where to look for the fleshy wrinkled stems that are the "raisins".
    Hovenia dulcis_UBCBG_Cutler_20240905_144718.jpg Hovenia dulcis_UBCBG_Cutler_20240905_144815.jpg

    Here is Meliosma alba. I found the "light-coloured leaflet backs" a little confusing, and it's not bubble-bursting flower bud season. Still, I think I have the right tree, though I could not get near a label, since the tree was on the other side of the stream.
    Meliosma alba_UBCBG_Cutler_20240905_151858.jpg Meliosma alba_UBCBG_Cutler_20240905_151942.jpg Meliosma alba_UBCBG_Cutler_20240905_152018.jpg
     
    Last edited: Sep 9, 2024
  6. wcutler

    wcutler Paragon of Plants Forums Moderator VCBF Cherry Scout 10 Years

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    Here are a few more to finish up. I was chatting with some visitors about trying to find the Euptelea polyandra, but after they'd gone on their way and I pouted for a bit, I decided it must be this, and it has a label. I hope I think to look for it in the spring when it has the petal-less flowers with long, dangling red anthers.
    Euptelea polyandra_UBCBG_Cutler_20240905_150401.jpg Euptelea polyandra_UBCBG_Cutler_20240905_150428.jpg Euptelea polyandra_UBCBG_Cutler_20240905_150442.jpg

    The Bretschneidera sinensis may have some new lower branches, but it's still not easy to approach for a good photo of them. They're the compound leaves in the photos.
    Bretschneidera sinensis_UBCBG_Cutler_20240905_154856.jpg Bretschneidera sinensis_UBCBG_Cutler_20240905_155141.jpg Bretschneidera sinensis_UBCBG_Cutler_20240905_155214.jpg Bretschneidera sinensis_UBCBG_Cutler_20240905_155223.jpg Bretschneidera sinensis_UBCBG_Cutler_20240905_155305.jpg

    Here is the substantial example of Diospyros lotus, lotus plum, near the entrance to the Asian Garden.
    Diospyros lotus_UBCBG_Cutler_20240905_142705.jpg Diospyros lotus - lotus plum_UBCBG_Cutler_20240905_142339.jpg Diospyros lotus_UBCBG_Cutler_20240905_142440.jpg


    Off-topic now, here are Aria aronioides fruits.
    Aria aronioides_UBCBG_Cutler_20240905_145601.jpg

    And some flowers - Eryngium leavenworthii, with such striking grape colouring. It was very attractive to bees. I took lots of photos of the bees, but they didn't show up in a single photo.
    Eryngium leavenworthii_UBCBG_Cutler_20240905_140315.jpg Eryngium leavenworthii_UBCBG_Cutler_20240905_140426.jpg
     
  7. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    Tetracentron sinense for that first tree in post #5

    A very unusual species, sometimes put in its own monotypic family Tetracentraceae, or sometimes combined with the very dissimilar Trochodendron in the family Trochodendraceae.
     
  8. wcutler

    wcutler Paragon of Plants Forums Moderator VCBF Cherry Scout 10 Years

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    Oh, brilliant, I forgot to type in the name in both paragraphs with photos of that species. Thank you for telling me! I've fixed that now. The photos were named. Douglas mentioned the Trochodendron relative in the blog, and apologized because it's evergreen, in the blog about rare deciduous trees.
     

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