Australian competitive compound leaves evergreen tree fast-growing fast-spreading flora flower spikes flowers invasive native native flora native plant ornamental plant prolific prolific seeder Queensland native red spikes schefflera actinophylla spikes terminal inflorescence tree umbrella tree unique flowers airport angles boy carpet carpeting child color colored colors colour coloured colours concourse corner departure-lounge departures dummy flight-departures flooring light lighting lounge pacifier passengers security tarmac terminal toddler travel travelers traveling travellers travelling views wait waiting windows birds-eye-view cable-chairs cables cableway chairlift danger empty foliage greenery height high in-use looking-down machinery mechanisms movement panoramic passing personal-transport perspectives safeguards safety safety-rails scene scenic seats secure shrubbery terminus tourist-transport tourists transport trees turn-around