Sycamore appears to be regenerating following gorse establishment. Saplings of sycamore and larch protrude above the currant in places. Tussock grassland is a semi-natural type of community grazed by sheep and heavily invaded by many exotic grasses. Among exotic broadleaves, sycamore is the commonest species and is frequently accompanied by self-sown seedlings, but its distribution appears to be limited to sheltered moist sites. It is apparent that sycamore will remain a permanent feature of the New Zealand vegetation.
Little information is available on the species itself.
He also investigated the impact of light and temperature on growth in seedlings. He found clear differences between the invader and the natives at the seedling, sapling and adult stages. Leaf production continued relatively longer in natives than in sycamore. Shoot extension was lowest in sycamore seedlings and mature trees but higher in young trees than in natives. Bud scales of sycamore are reduced leaves, whereas in native spp.