Two Sorbus, one for ID

Discussion in 'Plants: Identification' started by wcutler, Sep 24, 2020.

  1. wcutler

    wcutler Paragon of Plants Forums Moderator VCBF Cherry Scout 10 Years

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    I said just one for ID, but here is one just across from it, that I think is Sorbus scopulina, and I'd appreciate that being corrected if it's not right.
    Sorbus-scopulina_LostLagoon_Cutler_20200819_143248.jpg Sorbus-scopulina_LostLagoon_Cutler_20200819_143306.jpg Sorbus-scopulina_LostLagoon_Cutler_20200819_143335.jpg Sorbus-scopulina_LostLagoon_Cutler_20200819_143435.jpg

    These are at Lost Lagoon, in Stanley Park, where the Parks Board has planted lots of stuff, so there is no particular reason to assume these are native here.
    This one on the other side of the path has generally 13 or 15 leaflets, which might indicate Sorbus aucuparia, except photos of that show leaflet margins serrated all the way around. If not for the number of leaflets, I thought the rather fat leaflet shape and margins entire except on the third toward the tip would indicate Sorbus sitchensis var. greyi. But the rootstock leaflets seem to be coarsely or double serrated on the entire margin. So that has me confused - is this grafted, and why would that be grafted? The trunk that looks kind of shaggy has nothing to do with this tree - snuggled up to it is one of the trunks that does belong to it.
    Sorbus_LostLagoon_Cutler_20200922_133650.jpg Sorbus_LostLagoon_Cutler_20200819_143157.jpg Sorbus_LostLagoon_Cutler_20200922_133729.jpg Sorbus_LostLagoon_Cutler_20200922_134229.jpg Sorbus_LostLagoon_Cutler_20200922_134324.jpg

    Here is a comparison of a leaf and fruits from the first tree (on the left) and the second tree.
    Sorbus-scopulina-and-Sorbus_LostLagoon_Cutler_20200922_134302.jpg
     
  2. Acerholic

    Acerholic Paragon of Plants Forums Moderator VCBF Cherry Scout Maple Society

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    @wcutler good afternoon Wendy, my thoughts were of Sorbus aucuparia, but as you say the leaf margins are serated all the way around the leaf on this tree.
    Though my thoughts are that as the genus Sorbus is highly variable then aucuparia could well be the closest match regarding form.
    A couple of roads from me there are several Sorbus that were all planted at the same time by the council and supposedly the same tree, ( rowan) but they all show differences.
     

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