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I saw this tree in Wales;It is an oak and a rowan with one trunk



  • BorderlineBorderline Posts: 4,700
    Need to get a close look at the trunk area. Looks like at some stage they grew into one another and as both matured, they grow into one.
  • Pete.8Pete.8 Posts: 10,967
    I have a Euonymus hedge and a weigela growing in front of it.
    Right at the base, a branch of the euonymus has been in contact with the base of the weigela and they've fused, now I've got euonymus shoots coming from the base of my weigela

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • FairygirlFairygirl Posts: 54,016
    Rowans will seed anywhere if conditions are right - including little nooks and crannies in tree branches.
    Birds 'drop' seed too, which often germinates  ;)
    It's a place where beautiful isn't enough of a word....

    I live in west central Scotland - not where that photo is...
  • Lizzie27Lizzie27 Posts: 11,676
    What fun, do you think the rowan berries will become more acorn like!
    North East Somerset - Clay soil over limestone
  • nutcutletnutcutlet Posts: 27,312
    Lizzie27 said:
    What fun, do you think the rowan berries will become more acorn like!
    `No, they're two distinct plants and will remain so, they can't become one, even if one trunk raps around the other

    In the sticks near Peterborough
  • Lizzie, that's what I thought but I looked and studied it for ages, and could not find the rowan trunk.  The rowan began a  few feet up the oak, as if it had seeded itself, but then I thought that's not possible, and then I thought the oak wouldn't have let another tree grow near it, so how did the 2 trunks combine..
  • DovefromaboveDovefromabove Posts: 86,164
    Berries in bird droppings often germinate in leaf litter in the forks or holes in tree trunks so one tree appears to be growing out of another.  

    I once had a gooseberry bush growing on a pollarded willow.  I don't have a photo of it, but I found this picture of a cherry tree growing from a pollarded willow.  

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.

  • how interesting, thanks,
  • It can easily happen.
    A bird eats the Rowan berries.
    It then flies on to another tree oak maybe and poops...a neat package of fertilizer plus  the seed. 
    The seed may start to germinate in the debris between the branches or the soil between the roots.
    The oak can do nothing to stop it.
    It only works if the smaller rowan can get enough water/food to grow.
    Most tiny saplings growing on a large tree will wither and die.
    But at the end of the day you have 2 separate trees...the Rowan and the Oak growing together...the oak part will have acorns and the Rowan red berries.

    You may like to read about Laburnocytisus_adamii..where 2 different trees have been grafted together...on the one tree you can get both pink flowers and yellow.
    Laburnum in Fabaceae is one...with yellow flowers 
    The other is Chamaecytisus purpureus, Fabaceae with pink flowers. works as they are both in the same family/distant relations.

    Think of it in animals...dogs  in the family Canidae can mate with other Poodles with Labs..= Labradoodles.
    But cats  in the family Felidae are not related to dogs so you never see a cross between a dog and a cat. 

    Hope I haven't confused you even more!
    Perthshire. SCOTLAND .
  • so really its a parasite...
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