Left & Upper right: at Kew garden, Lower right: offered by Dan

Left : An adult tree, Upper Right : Seedlings two years old, Lower Right : Germinated seedlings
Offered by Mr. Simon Grant, Australia

Trunk & branches

Samaras of Acer pentaphyllum

On "From sprouting to the appearance of 5 leaflets)",
please see the page of "The Observation of Acer pentaphyllum with 5 leaflets".