canopy coconut tree foliage krayker nuts shade spread tree umbrella branch cut flowers flower flowering plant flowerpot grass plant shrub umbrella tree woody plant birch tree cutting parasol roof shelter stripes summer arid conifer dry ecology fan forest habitat natural nature pine Pinus pinea sandy Spain stone dwarf palm Australian competitive compound leaves evergreen tree fast-growing fast-spreading flora flower spikes flowers invasive native native flora native plant ornamental prolific prolific seeder Queensland native red spikes schefflera actinophylla spikes terminal inflorescence unique flowers