Unknown tree sprouted in the pot with my lemon tree-ID please

Posts

• AnniD Posts: 12,585

  August 2021

  Some type of ash or sycamore perhaps? 
  I'm sure there's an expert on here who will know 

  0
• Silver surfer Posts: 4,719

  August 2021 edited August 2021

  AnniD said:

  Some type of ash or sycamore perhaps? 
  I'm sure there's an expert on here who will know 

  Sorry but neither Ash or Sycamore.
  Ash leaves are compound.. it has one stalk with many opposite leaflets.See pics 1 and 2 below.
  While Sycamore are large they look like palm of a hand. ..palmate see 3 and  4  below.
  
  Sorry, I do not recognise the mystery tree.Which has alternate single leaves.
  But in Canada it maybe Betula  a birch tree. I do not know which species you have over there.
  
  
  

  Perthshire. SCOTLAND .

  0
• JennyJ Posts: 10,576

  August 2021 edited August 2021

  Not sycamore. Maybe ash. The usual suspect for seeding into pots with other plants is goat willow, but it doesn't look quite right for that, to me. In any case it's not something you want in the pot with your lemon and probably not something you want to keep unless you have an enormous garden.

  Edit: just noticed you're in Canada, and Silver Surfer beat me to it in pointing out that it could be something we don't have in the UK. But I still think it wants taking out of the pot or it'll out-compete the lemon.
  

  Doncaster, South Yorkshire. Soil type: sandy, well-drained
  

  0
• Borderline Posts: 4,700

  August 2021

  It could be an Elm? Looks a bit like the Siberian Elm, Ulmus Pumila.

  1
• HouseFinch Posts: 328

  August 2021 edited August 2021

  Yes, I think Borderline is right. It looked just like a siberian elm seedling. It's been pulled out and left to the elements. Highly invasive was the description online. No idea where it came from. Definitely odd that it got into the pot. Thank you everyone for the help.
  

  0
• Silver surfer Posts: 4,719

  August 2021

  HouseFinch said:

   Highly invasive was the description online.  
  

  In the wild this tree needs "well-drained, nutrient poor soil, and high light conditions" 
  You need to read the detail to see where it is invasive or a problem.
  UK doesn't come close!
  
  

  Quote wiki.....

  "Invasiveness and spontaneous hybridization[edit]

  In North America, Ulmus pumila has become an invasive species in much of the region from central Mexico[40] northward across the eastern and central United States to Ontario, Canada.[41] It also hybridizes in the wild with the native U. rubra (Slippery Elm) in the central United States, prompting conservation concerns for the latter species.[42][43] In South America, the tree has spread across much of the Argentine pampas[44][45]

  In Europe it has spread widely in Spain, and hybridizes extensively there with the native field elm (U. minor),[46] contributing to conservation concerns for the latter species.[47] Research is ongoing into the extent of hybridisation with U. minor in Italy.[48]

  Ulmus pumila is often found in abundance along railroads and in abandoned lots and on disturbed ground. The gravel along railroad beds provides ideal conditions for its growth: well-drained, nutrient poor soil, and high light conditions; these beds provide corridors which facilitate its spread. Owing to its high sunlight requirements, it seldom invades mature forests, and is primarily a problem in cities and open areas,[49][50] as well as along transportation corridors.

  The species is now listed in Japan as an alien species recognized as established in Japan or found in the Japanese wild."

  Perthshire. SCOTLAND .

  1