blackthorn blackthorn flower bush England flower Great Britain natural nature Prunus spinosa shrub spring white wild Australian bloom bush plant color colorful colour colourful flora full bloom grevillea loops loopy native plant stamen strange tendrils unusual unusual shape yellow english flowering plant flowers fuchsia garden perennial pink purple tender bushes Dandelion grassland green landscape meadow organic plains tree trees wild flower blooming blossom blossoms botanic garden botanics brazil glasgow glory bush melastomataceae plants summer tibouchina organensis violet cistus hillside Sardinia blue clouds sky Australia branches bright red callistemon callistemon viminalis evergreen flower-spikes foliage leaves light nectar red shade shadows soft stamens sunlight weeping bottlebrush wildflower lavendar stem Aster blossoming blossomy botanic many